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If you’re searching for a qsfp28 breakout cable, you’re likely balancing high-speed performance with compatibility and cost. The Compatible with Supermicro CBL-NTWK-0988-Q28M1 stands out as the best overall due to its reliable build and broad compatibility. The 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable offers excellent value for multi-speed setups, while the HPC Optics Compatible with Extreme 10423 caters to enterprise-level needs. The main tradeoffs involve balancing cable length, passive versus active options, and price versus durability. Keep reading for a detailed breakdown of options to help you make an informed choice.

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15
compared
6
brands
5
types
Which qsfp28 breakout cable should you buy?
★ Top Pick
Compatible with Supermicro CBL
Best for Compact High-Speed Setup
Supports 100Gbps data transfer for high-performance applications
See on Amazon →
Data center operators with compatible Supermicro hardware seeking a reliable 2-meter cable
Compatible with Supermicro CBL
Supports 100Gbps data transfer with four 25Gbps channels
View on Amazon →
IT professionals managing mixed-vendor data centers needing a durable, flexible breakout cable
QSFP28 to 4x SFP28 Breakout Ca
Supports high-speed data transmission across multiple vendors
View on Amazon →
Data centers with compatible Supermicro equipment requiring extended 3-meter connections
Compatible with Supermicro CBL
Supports 100Gbps data transfer across long distances
View on Amazon →
Enterprise networks and data centers needing a high-speed, broadly compatible copper breakout cable
QSFP28 100G Direct Attach Copp
Supports 100Gbps data transfer for demanding applications
View on Amazon →
Pros & cons at a glance
Compatible with Supermicro CBL
✓ Supports 100Gbps data transfer for high-performance applications
✗ Limited to compatible Supermicro equipment, restricting flexibility
Compatible with Supermicro CBL
✓ Supports 100Gbps data transfer with four 25Gbps channels
✗ Limited to specific Supermicro models, reducing versatility
QSFP28 to 4x SFP28 Breakout Ca
✓ Supports high-speed data transmission across multiple vendors
✗ Requires compatible network equipment, limiting universal use
Compatible with Supermicro CBL
✓ Supports 100Gbps data transfer across long distances
✗ Passive design can lead to increased heat in dense setups
QSFP28 100G Direct Attach Copp
✓ Supports 100Gbps data transfer for demanding applications
✗ Passive design may limit performance in some active network devices
MikroTik QSFP28 Breakout Cable
✓ High-speed 25 Gbps data transfer for efficient networking
✗ Limited to MikroTik device compatibility, reducing flexibility
10Gtek 100G QSFP28 to 4x 25G S
✓ High-speed 100G to 4x 25G connectivity for rapid data transfer
✗ Limited to very short distances, restricting flexibility
10Gtek 100G QSFP28 to 4x 25G S
✓ High compatibility with Cisco switches
✗ Limited to very short links, restricting deployment options
Compatible with Extreme 10428
✓ Supports high-speed 2x50G data transfer
✗ Limited to specific switch models, reducing flexibility
Compatible with Fortinet FN-CA
✓ Supports high-speed 100Gbps transfer for enterprise needs
✗ Limited to indoor environments, not weatherproof
Compatible with Mellanox MCP7F
✓ High-speed 100Gbps data transfer compatible with Mellanox switches
✗ Limited to Mellanox MCP7F00-A002R30N compatibility
Intellinet QSFP28 to 4X SFP28
✓ Supports up to 100Gbps data transfer rate
✗ Limited to indoor use only
Compatible with Extreme 10426
✓ Supports high-speed 100Gbps transfer
✗ Limited to specific Extreme models
Compatible with Fortinet FN-CA
✓ Supports 100Gbps aggregate transfer
✗ Specific to Fortinet hardware
HPC Optics Compatible with Ext
✓ Supports high-speed 100Gbps transfer
✗ Specific to Extreme 10423 switches

Complete the kit

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Key Takeaways

  • The top picks offer a balance of performance, durability, and compatibility with leading networking hardware.
  • Cable length and passive versus active designs are key factors impacting price and signal integrity.
  • Most high-quality options are either 1m or 3m, with longer cables often sacrificing some performance or durability.
  • Value varies significantly; premium cables tend to last longer and support better shielding, but at higher cost.
  • Compatibility with specific network devices can make or break your setup; always verify before purchasing.
2
Compatible with Supermicro CBL
Best for Mid-Length Data Center Connections
1
Compatible with Supermicro CBL
Best for Compact High-Speed Setup
3
QSFP28 to 4x SFP28 Breakout Ca
Best for Versatile Data Center Deployment

Our Top Qsfp28 Breakout Cable Picks

Compatible with Supermicro CBL-NTWK-0988-Q28M1 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 1 MeterCompatible with Supermicro CBL-NTWK-0988-Q28M1 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 1 MeterBest for Compact High-Speed SetupConnector Type: 100G QSFP28 to 4x SFP28Cable Type: Breakout Twinax DACCompatible Devices: SupermicroVIEW ON AMAZONSee Our Full Breakdown
Compatible with Supermicro CBL-NTWK-0988-Q28M2 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 2M Passive DACCompatible with Supermicro CBL-NTWK-0988-Q28M2 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 2M Passive DACBest for Mid-Length Data Center ConnectionsCompatibility: Supermicro CBL-NTWK-0988-Q28M2Data Rate: 100GbpsChannels: 4x25GbpsVIEW ON AMAZONSee Our Full Breakdown
QSFP28 to 4x SFP28 Breakout Cable, MIK-XQ+BC0003-XS+QSFP28 to 4x SFP28 Breakout Cable, MIK-XQ+BC0003-XS+Best for Versatile Data Center DeploymentCompatibility: High-speed data center and network connectivityConfiguration: 1 QSFP28 to 4 SFP28Model: MIK-XQ+BC0003-XS+VIEW ON AMAZONSee Our Full Breakdown
Compatible with Supermicro CBL-NTWK-0988-Q28M3 100G QSFP28 to 4xSFP28 Breakout Twinax Cable 3M Passive DACCompatible with Supermicro CBL-NTWK-0988-Q28M3 100G QSFP28 to 4xSFP28 Breakout Twinax Cable 3M Passive DACBest for Long-Distance High-Speed ConnectionsCompatibility: Supermicro CBL-NTWK-0988-Q28M3Data Rate: 100GbpsChannels: 4x25GbpsVIEW ON AMAZONSee Our Full Breakdown
QSFP28 100G Direct Attach Copper Cable, 3M/9.8FT, Breakout Power Cable for Juniper and Other Network DevicesQSFP28 100G Direct Attach Copper Cable, 3M/9.8FT, Breakout Power Cable for Juniper and Other Network DevicesBest for Broad Compatibility and Enterprise UseData Transfer Speed: 100GbpsCable Length: 3 meters / 9.8 feetConnector Type: QSFP28VIEW ON AMAZONSee Our Full Breakdown
MikroTik QSFP28 Breakout Cable, 3m XQ+BC0003-XS+MikroTik QSFP28 Breakout Cable, 3m XQ+BC0003-XS+Best for MikroTik Device IntegrationConnector Type: QSFP28 to 4x SFP28Cable Length: 3 metersData Transfer Rate: 25 GbpsVIEW ON AMAZONSee Our Full Breakdown
10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-MeterBest for Short-Distance Cost-Effective ConnectionsType: Breakout DAC Copper TwinaxLength: 2 metersCompatibility: Juniper JNP-100G-4X25G-2MVIEW ON AMAZONSee Our Full Breakdown
10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 1 Meter10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 1 MeterBest for Cisco Environments with Short Distance NeedsType: Breakout DAC Copper TwinaxLength: 1 meterCompatibility: Cisco QSFP-4SFP25G-CU1MVIEW ON AMAZONSee Our Full Breakdown
Compatible with Extreme 10428 QSFP28 to 2x50G QSFP28 3m Breakout Twinax CableCompatible with Extreme 10428 QSFP28 to 2x50G QSFP28 3m Breakout Twinax CableBest for Extreme Switch CompatibilityCompatibility: Extreme 10428Data Rate: 100GbpsChannels: 2x50GVIEW ON AMAZONSee Our Full Breakdown
Compatible with Fortinet FN-CABLE-QSFP28-4SFP28-3 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 3mCompatible with Fortinet FN-CABLE-QSFP28-4SFP28-3 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 3mBest for Fortinet Data Center DeploymentsConnector Type: QSFP28 to 4x SFP28Cable Type: Passive Twinax CopperLength: 3 metersVIEW ON AMAZONSee Our Full Breakdown
Compatible with Mellanox MCP7F00-A002R30N 100G QSFP28 to 4xSFP28 Breakout Twinax DAC, 2mCompatible with Mellanox MCP7F00-A002R30N 100G QSFP28 to 4xSFP28 Breakout Twinax DAC, 2mBest Compatibility and Reliability for Mellanox EnvironmentsCompatibility: Mellanox MCP7F00-A002R30NType: Breakout Twinax DACLength: 2 metersVIEW ON AMAZONSee Our Full Breakdown
Intellinet QSFP28 to 4X SFP28 100G Passive DAC Breakout Cable, 7 ftIntellinet QSFP28 to 4X SFP28 100G Passive DAC Breakout Cable, 7 ftBest for Short-Distance, High-Speed Data Center ConnectionsLength: 7 ftConnectors: QSFP28 to 4x SFP28Data Transfer Rate: up to 100 GbpsVIEW ON AMAZONSee Our Full Breakdown
Compatible with Extreme 10426 100Gb/s QSFP28 to 2x50G QSFP28 1m Breakout Twinax CableCompatible with Extreme 10426 100Gb/s QSFP28 to 2x50G QSFP28 1m Breakout Twinax CableBest for Extreme Switch Users Needing Compact, High-Speed ConnectivityCompatibility: Extreme 10426Data Rate: 100GbpsChannels: 2x50GVIEW ON AMAZONSee Our Full Breakdown
Compatible with Fortinet FN-CABLE-QSFP28-4SFP28-1 100G QSFP28 to 4xSFP28 1m Breakout Twinax Direct Attach Cable DACCompatible with Fortinet FN-CABLE-QSFP28-4SFP28-1 100G QSFP28 to 4xSFP28 1m Breakout Twinax Direct Attach Cable DACBest for Fortinet Device Integration and Simplified ConnectivityCompatibility: Fortinet FN-CABLE-QSFP28-4SFP28-1Type: Breakout DACData Rate: 100GbpsVIEW ON AMAZONSee Our Full Breakdown
HPC Optics Compatible with Extreme 10423 100G QSFP28 to 4xSFP28 3m Breakout Twinax DACHPC Optics Compatible with Extreme 10423 100G QSFP28 to 4xSFP28 3m Breakout Twinax DACBest for Longer High-Speed Links in Extreme 10423 EnvironmentsCompatibility: Extreme 10423Type: Breakout Twinax DACData Rate: 100GbpsVIEW ON AMAZONSee Our Full Breakdown
Specs at a glance
qsfp28 breakout cableCompatibilityLengthData RateType
Compatible with Supermicro CBL1 meter
Compatible with Supermicro CBLSupermicro CBL-NTWK-0988-Q28M22 meters100GbpsPassive DAC
QSFP28 to 4x SFP28 Breakout CaHigh-speed data center and network connectivity
Compatible with Supermicro CBLSupermicro CBL-NTWK-0988-Q28M3100GbpsPassive DAC
QSFP28 100G Direct Attach Copp
MikroTik QSFP28 Breakout Cable
10Gtek 100G QSFP28 to 4x 25G SJuniper JNP-100G-4X25G-2M2 meters100G to 4x 25GBreakout DAC Copper Twinax
10Gtek 100G QSFP28 to 4x 25G SCisco QSFP-4SFP25G-CU1M1 meter100G to 4x 25GBreakout DAC Copper Twinax
Compatible with Extreme 10428 Extreme 104283 meters100Gbps
Compatible with Fortinet FN-CAFortinet devices3 meters
Compatible with Mellanox MCP7FMellanox MCP7F00-A002R30N2 meters100GbpsBreakout Twinax DAC
Intellinet QSFP28 to 4X SFP28 7 ft
Compatible with Extreme 10426 Extreme 10426100GbpsPassive Copper Twinax
Compatible with Fortinet FN-CAFortinet FN-CABLE-QSFP28-4SFP28-11 meter100GbpsBreakout DAC
HPC Optics Compatible with ExtExtreme 104233 meters100GbpsBreakout Twinax DAC

More Details on Our Top Picks

  1. Compatible with Supermicro CBL-NTWK-0988-Q28M1 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 1 Meter

    Compatible with Supermicro CBL-NTWK-0988-Q28M1 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 1 Meter

    Best for Compact High-Speed Setup

    View on Amazon

    This 1-meter passive DAC cable stands out for its straightforward design and perfect fit for tight spaces, especially when used with compatible Supermicro hardware like the CBL-NTWK-0988-Q28M1. Compared to the longer 2-meter option, it offers less flexibility, but its shorter length reduces signal loss and clutter in dense data center racks. Its passive nature means it’s reliable for short distances but may lack heat dissipation, making it less suitable for high-temperature environments. If your setup involves compatible Supermicro equipment and your space is constrained, this cable provides a dependable, no-fuss connection.

    Pros:
    • Supports 100Gbps data transfer for high-performance applications
    • Compact 1-meter length reduces clutter and signal degradation
    • Compatible specifically with Supermicro devices for seamless integration
    • Passive design ensures reliable, low-maintenance operation
    Cons:
    • Limited to compatible Supermicro equipment, restricting flexibility
    • Passive design may generate more heat in high-density environments
    • Only available in a fixed 1-meter length

    Best for: Data centers with limited space and Supermicro hardware needing a compact, high-speed connection

    Not ideal for: Large-scale setups requiring longer cables or active cooling features, or non-Supermicro devices

    • Connector Type:100G QSFP28 to 4x SFP28
    • Cable Type:Breakout Twinax DAC
    • Compatible Devices:Supermicro
    • Data Transfer Rate:100 Gbps
    • Length:1 meter
    • Weight:4 ounces
    • Connector Gender:Male-to-Male
    Our verdict
    “Ideal for users with compatible Supermicro gear who need a short, reliable connection in tight spaces.”
  2. Compatible with Supermicro CBL-NTWK-0988-Q28M2 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 2M Passive DAC

    Compatible with Supermicro CBL-NTWK-0988-Q28M2 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 2M Passive DAC

    Best for Mid-Length Data Center Connections

    View on Amazon

    This 2-meter passive DAC cable offers a balanced option for high-speed connections, especially when used with the Supermicro CBL-NTWK-0988-Q28M2. Compared to the shorter 1-meter cable, it provides more flexibility without significantly sacrificing performance, making it suitable for slightly larger data racks. Its 5-year warranty adds peace of mind for ongoing operations. However, being passive, it may not handle higher temperature environments as well as active alternatives, and fixed length limits placement options. For users needing a reliable, longer cable compatible with specific Supermicro models, this pick offers a solid middle ground.

    Pros:
    • Supports 100Gbps data transfer with four 25Gbps channels
    • Longer 2-meter length increases deployment options
    • Includes a 5-year warranty for durability assurance
    • Fully compatible with specified Supermicro hardware
    Cons:
    • Limited to specific Supermicro models, reducing versatility
    • Passive design may lead to heat buildup in dense setups
    • Fixed length may not suit all rack configurations

    Best for: Data center operators with compatible Supermicro hardware seeking a reliable 2-meter cable

    Not ideal for: Environments requiring active cooling or highly flexible cabling options beyond 2 meters

    • Compatibility:Supermicro CBL-NTWK-0988-Q28M2
    • Data Rate:100Gbps
    • Channels:4x25Gbps
    • Connector Type:QSFP28 to 4x SFP28
    • Type:Passive DAC
    • Length:2 meters
    • Warranty:5 years
    Our verdict
    “Best suited for users with compatible Supermicro gear looking for a dependable 2-meter connection without active cooling needs.”
  3. QSFP28 to 4x SFP28 Breakout Cable, MIK-XQ+BC0003-XS+

    QSFP28 to 4x SFP28 Breakout Cable, MIK-XQ+BC0003-XS+

    Best for Versatile Data Center Deployment

    View on Amazon

    The MIK-XQ+BC0003-XS+ offers a professional-grade solution for high-speed data center and network applications requiring flexible connectivity options. Unlike the Supermicro-specific cables, this model emphasizes broad compatibility with various equipment, making it a good choice when diverse hardware is involved. Its robust construction supports demanding environments, but it requires compatible network equipment to function properly. The design doesn’t specify length options, so deployment flexibility depends on the specific setup. This cable is well-suited for organizations needing a durable, adaptable breakout cable for complex networks.

    Pros:
    • Supports high-speed data transmission across multiple vendors
    • Flexible deployment options enhance adaptability
    • Durable construction suitable for demanding environments
    Cons:
    • Requires compatible network equipment, limiting universal use
    • Limited information on length options
    • Higher complexity might necessitate professional installation

    Best for: IT professionals managing mixed-vendor data centers needing a durable, flexible breakout cable

    Not ideal for: Small-scale setups with strictly specific hardware or when a shorter cable is needed

    • Compatibility:High-speed data center and network connectivity
    • Configuration:1 QSFP28 to 4 SFP28
    • Model:MIK-XQ+BC0003-XS+
    • Construction:Professional-grade cable assembly
    Our verdict
    “Great for multi-vendor data centers seeking a durable, versatile breakout cable with broad compatibility.”
  4. Compatible with Supermicro CBL-NTWK-0988-Q28M3 100G QSFP28 to 4xSFP28 Breakout Twinax Cable 3M Passive DAC

    Compatible with Supermicro CBL-NTWK-0988-Q28M3 100G QSFP28 to 4xSFP28 Breakout Twinax Cable 3M Passive DAC

    Best for Long-Distance High-Speed Connections

    View on Amazon

    The 3-meter passive DAC cable is designed for extended high-speed links, especially when paired with the Supermicro CBL-NTWK-0988-Q28M3. While its length provides flexibility for larger racks or distributed setups, the passive design may generate more heat, requiring proper placement. Compared to shorter cables, it offers less signal attenuation over longer distances but shares similar limitations regarding heat dissipation. Its 5-year warranty supports its use in mission-critical environments. If you need a longer, reliable connection for compatible Supermicro hardware, this cable delivers performance, with some caution about heat management in dense configurations.

    Pros:
    • Supports 100Gbps data transfer across long distances
    • Suitable for larger rack layouts and distributed setups
    • Includes a 5-year warranty for peace of mind
    • Compatible specifically with Supermicro hardware
    Cons:
    • Passive design can lead to increased heat in dense setups
    • Fixed 3-meter length might not fit all configurations
    • Limited to compatible Supermicro devices

    Best for: Data centers with compatible Supermicro equipment requiring extended 3-meter connections

    Not ideal for: High-temperature or densely packed environments lacking active cooling solutions

    • Compatibility:Supermicro CBL-NTWK-0988-Q28M3
    • Data Rate:100Gbps
    • Channels:4x25Gbps
    • Connector Type:QSFP28 to 4x SFP28
    • Cable Length:3 meters
    • Type:Passive DAC
    • Warranty:5 years
    Our verdict
    “Best for users needing a longer, dependable connection for compatible Supermicro systems with adequate cooling.”
  5. QSFP28 100G Direct Attach Copper Cable, 3M/9.8FT, Breakout Power Cable for Juniper and Other Network Devices

    QSFP28 100G Direct Attach Copper Cable, 3M/9.8FT, Breakout Power Cable for Juniper and Other Network Devices

    Best for Broad Compatibility and Enterprise Use

    View on Amazon

    This 3-meter QSFP28 copper cable emphasizes ease of use with a plug-and-play design, supporting 100Gbps speeds across major brands like Juniper, Cisco, and Ubiquiti. Unlike the specialized Supermicro cables, this model offers broad compatibility for enterprise networks, making it a versatile choice. Its durable construction with LSZH outer jacket ensures performance in various environments, but as a passive copper cable, it may be less suited to very high-temperature conditions or setups requiring active cooling. If you need a straightforward, high-speed copper connection compatible with multiple brands, this cable provides a reliable, ready-to-deploy solution.

    Pros:
    • Supports 100Gbps data transfer for demanding applications
    • Easy to install with plug-and-play design
    • Durable LSZH outer jacket for safety and longevity
    • Compatible with major networking brands
    Cons:
    • Passive design may limit performance in some active network devices
    • Fixed 3-meter length may not suit all configurations
    • Limited to QSFP28 connectors, restricting flexibility

    Best for: Enterprise networks and data centers needing a high-speed, broadly compatible copper breakout cable

    Not ideal for: High-temperature environments or setups requiring active cooling or specialized brand-specific cables

    • Data Transfer Speed:100Gbps
    • Cable Length:3 meters / 9.8 feet
    • Connector Type:QSFP28
    • Material:Oxygen-free copper
    • Outer Jacket:LSZH
    • Temperature Range:-40°C to 85°C
    Our verdict
    “Excellent for enterprise environments seeking a reliable, high-speed copper breakout cable with broad device compatibility.”
  6. MikroTik QSFP28 Breakout Cable, 3m XQ+BC0003-XS+

    MikroTik QSFP28 Breakout Cable, 3m XQ+BC0003-XS+

    Best for MikroTik Device Integration

    View on Amazon
    The MikroTik XQ+BC0003-XS+ stands out for its tailored compatibility with MikroTik CCR2216 and CRS504 devices, making it the ideal choice for users heavily invested in MikroTik ecosystems. Compared with the other cables, its 3-meter length offers flexibility without sacrificing performance, but it is limited to MikroTik hardware, which could restrict deployment options. The cable’s high-speed 25 Gbps transfer rate ensures reliable intra-data-center connections, yet it requires some technical knowledge to install properly. Unlike copper-based alternatives, this fiber optic cable minimizes signal loss over its length, but it lacks weather resistance, making outdoor use problematic. This pick makes the most sense for MikroTik users seeking a straightforward, high-performance connection within specified hardware environments.
    Pros:
    • High-speed 25 Gbps data transfer for efficient networking
    • Easy to connect multiple devices with dedicated fiber optic design
    • Flexible 3-meter length offers versatile setup options
    • Reliable compatibility with MikroTik hardware
    Cons:
    • Limited to MikroTik device compatibility, reducing flexibility
    • Requires technical expertise for installation
    • No weatherproofing for outdoor environments

    Best for: MikroTik network administrators who need reliable, high-speed fiber links within a controlled environment.

    Not ideal for: IT teams managing multi-vendor setups or outdoor data centers, where weather resistance and broader compatibility are needed.

    • Connector Type:QSFP28 to 4x SFP28
    • Cable Length:3 meters
    • Data Transfer Rate:25 Gbps
    • Compatible Devices:CCR2216, CRS504
    • Category:Fiber Optic
    • Color:Multicolor
    Our verdict
    “This fiber optic breakout cable suits MikroTik-centric environments demanding high-speed, reliable connections within a controlled setting.”
  7. 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter

    10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter

    Best for Short-Distance Cost-Effective Connections

    View on Amazon
    This 2-meter copper breakout DAC from 10Gtek offers a straightforward, cost-efficient solution for short-range rack-to-rack connections, especially when compared to the longer MikroTik fiber cable. Its 100G to 4x 25G transfer capability makes it ideal for high-speed inter-switch links in data centers, but its passive design limits its effectiveness to environments with minimal electromagnetic interference. The tested TDR & VNA quality assurance ensures reliable performance, yet its short 2-meter length means it’s best suited for tightly packed racks. Unlike fiber options, copper cables may have higher signal attenuation over slightly longer distances, which restricts flexibility. This cable makes the most sense for data centers needing a proven, short-distance copper link at a lower cost, but it’s not suited for outdoor or long-distance applications.
    Pros:
    • High-speed 100G to 4x 25G connectivity for rapid data transfer
    • Cost-effective for short-distance rack connections
    • Individually tested for quality and compatibility
    • Compact 2-meter length fits tight spaces
    Cons:
    • Limited to very short distances, restricting flexibility
    • Passive copper design may be vulnerable to interference in noisy environments
    • Not suitable for outdoor or long-range use

    Best for: Data center operators seeking short, reliable, cost-effective high-speed copper links between switches.

    Not ideal for: Large-scale deployments requiring longer or outdoor links, where copper’s limitations become problematic.

    • Type:Breakout DAC Copper Twinax
    • Length:2 meters
    • Compatibility:Juniper JNP-100G-4X25G-2M
    • Data Rate:100G to 4x 25G
    • Gauge:30AWG
    • Tested:TDR & VNA
    Our verdict
    “This copper DAC cable is an excellent choice for short, high-speed rack interconnects where cost and proven quality matter most.”
  8. 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 1 Meter

    10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 1 Meter

    Best for Cisco Environments with Short Distance Needs

    View on Amazon
    This 1-meter copper twinax from 10Gtek is tailored for Cisco switch deployments, offering a highly compatible and thoroughly tested solution for direct rack-to-rack links. Compared to the MikroTik fiber, its shorter length is ideal for tight spaces, but it shares the same passive copper limitations, including potential interference issues. Its 100G to 4x 25G transfer rate makes it suitable for high-speed interconnects, yet the limited length constrains flexibility for larger setups. The extensive testing provides confidence in signal integrity, but the cable’s passive copper design might not be suitable for environments with high electromagnetic interference. It makes the most sense for Cisco users needing a reliable, short-distance link, but less so for outdoor or longer-range applications.
    Pros:
    • High compatibility with Cisco switches
    • Thorough testing ensures signal integrity
    • Cost-effective solution for short distances
    • Compact 1-meter length ideal for tight rack spaces
    Cons:
    • Limited to very short links, restricting deployment options
    • Passive copper construction susceptible to interference
    • Not suitable for outdoor or extended environments

    Best for: Cisco network administrators needing a short, tested, high-speed link between switches in data centers.

    Not ideal for: Long-distance or outdoor deployments where longer cables or weatherproofing are required.

    • Type:Breakout DAC Copper Twinax
    • Length:1 meter
    • Compatibility:Cisco QSFP-4SFP25G-CU1M
    • Data Rate:100G to 4x 25G
    • Gauge:30 AWG
    • Tested:Signal integrity tested
    Our verdict
    “This cable delivers dependable, high-speed connectivity for Cisco environments needing a short, direct link with minimal fuss.”
  9. Compatible with Extreme 10428 QSFP28 to 2x50G QSFP28 3m Breakout Twinax Cable

    Compatible with Extreme 10428 QSFP28 to 2x50G QSFP28 3m Breakout Twinax Cable

    Best for Extreme Switch Compatibility

    View on Amazon
    Designed specifically for Extreme Networks 10428 switches, this 3-meter passive copper breakout cable offers a reliable solution for high-speed connections, supporting 2x50G channels. Compared with the copper options from 10Gtek, it emphasizes compatibility with a specific vendor, which ensures seamless integration but limits versatility. Its 3-meter length provides enough flexibility for typical rack setups, yet as a passive copper cable, it shares the common drawbacks of potential interference and less flexibility compared to active cables. The 5-year warranty adds confidence in durability, but this cable is only suitable for environments with compatible hardware and stable power sources. This cable is best suited for Extreme switch users seeking a high-speed, long-lasting connection within an indoor data center.
    Pros:
    • Supports high-speed 2x50G data transfer
    • Full compatibility with Extreme 10428 switches
    • Durable 3-meter passive copper design
    • Includes a 5-year warranty for peace of mind
    Cons:
    • Limited to specific switch models, reducing flexibility
    • Passive copper may be less flexible and more interference-prone
    • Indoor use only, not weatherproofed

    Best for: Extreme Networks switch users needing a durable, high-speed link for 50G channels over moderate distances.

    Not ideal for: Multi-vendor environments or outdoor installations where weatherproofing and broader compatibility are priorities.

    • Compatibility:Extreme 10428
    • Data Rate:100Gbps
    • Channels:2x50G
    • Cable Type:Twinax Passive Copper
    • Length:3 meters
    • Warranty:5 years
    Our verdict
    “This cable is well-suited for Extreme switch environments requiring reliable, high-speed, indoor connections over a moderate length.”
  10. Compatible with Fortinet FN-CABLE-QSFP28-4SFP28-3 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 3m

    Compatible with Fortinet FN-CABLE-QSFP28-4SFP28-3 100G QSFP28 to 4xSFP28 Breakout Twinax Cable, 3m

    Best for Fortinet Data Center Deployments

    View on Amazon
    This Fortinet-specific 3-meter breakout twinax cable provides reliable high-speed connectivity, supporting 100Gbps across four 25G channels. Its compatibility with Fortinet hardware makes it an ideal choice for enterprise data centers needing seamless integration. Compared to the Extreme or Cisco options, this cable emphasizes durability for indoor use, with a focus on high-bandwidth, passive copper design. Its 3-meter length suits typical rack distances, but like the others, it’s limited in outdoor or long-distance scenarios. The passive copper construction may introduce interference in noisy environments, but thorough testing helps mitigate this concern. This cable is best for Fortinet environments where trusted performance and high bandwidth are priorities, but it’s not suited for outdoor or multi-vendor setups requiring active solutions.
    Pros:
    • Supports high-speed 100Gbps transfer for enterprise needs
    • Full compatibility with Fortinet devices
    • Robust 3-meter passive copper design
    • Tested for signal integrity
    Cons:
    • Limited to indoor environments, not weatherproof
    • Passive copper may be prone to interference in certain environments
    • Short length restricts deployment flexibility

    Best for: Fortinet-based data centers seeking high-speed, reliable, short-distance interconnects with proven compatibility.

    Not ideal for: Outdoor or multi-vendor environments where weatherproofing and active options are needed.

    • Connector Type:QSFP28 to 4x SFP28
    • Cable Type:Passive Twinax Copper
    • Length:3 meters
    • Data Transfer Rate:100Gbps
    • Compatibility:Fortinet devices
    • Features:Indoor, outdoor use, passive
    Our verdict
    “This cable offers dependable, high-speed connectivity tailored for Fortinet setups within indoor data centers demanding consistent performance.”
  11. Compatible with Mellanox MCP7F00-A002R30N 100G QSFP28 to 4xSFP28 Breakout Twinax DAC, 2m

    Compatible with Mellanox MCP7F00-A002R30N 100G QSFP28 to 4xSFP28 Breakout Twinax DAC, 2m

    Best Compatibility and Reliability for Mellanox Environments

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    This cable stands out for its seamless compatibility with Mellanox MCP7F00-A002R30N switches, making it an excellent choice for existing Mellanox deployments. Compared to general-purpose options like the Intellinet QSFP28 to 4X SFP28 100G Passive DAC, it offers a tailored fit with guaranteed performance, backed by a 5-year warranty. The passive design and 2-meter length provide reliable high-speed connections, but its specificity limits use outside Mellanox hardware, and the passive nature may introduce slight distance constraints in complex setups.

    Pros:
    • High-speed 100Gbps data transfer compatible with Mellanox switches
    • Durable 2-meter length allows flexible deployment
    • 5-year warranty offers peace of mind
    • Passive twinax design ensures low latency
    Cons:
    • Limited to Mellanox MCP7F00-A002R30N compatibility
    • Passive cable may have distance limitations in complex environments

    Best for: IT professionals managing Mellanox-based high-speed networks who prioritize compatibility and guaranteed support

    Not ideal for: Organizations using diverse or non-Mellanox hardware, as the cable’s compatibility is limited to specific Mellanox devices

    • Compatibility:Mellanox MCP7F00-A002R30N
    • Type:Breakout Twinax DAC
    • Length:2 meters
    • Data Rate:100Gbps
    • Connectors:QSFP28 to 4xSFP28
    • Warranty:5 years
    Our verdict
    “This cable is ideal for Mellanox users needing reliable, high-speed connections with guaranteed compatibility.”
  12. Intellinet QSFP28 to 4X SFP28 100G Passive DAC Breakout Cable, 7 ft

    Intellinet QSFP28 to 4X SFP28 100G Passive DAC Breakout Cable, 7 ft

    Best for Short-Distance, High-Speed Data Center Connections

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    This 7-foot passive DAC excels at high-speed, short-distance connections within data centers, supporting up to 100Gbps. Compared to the Compatible with Extreme 10426 100Gb/s QSFP28 to 2x50G Twinax Cable, it offers more flexibility with a longer length and easier installation due to hot-swappable connectors. Its low power consumption and durable zinc die-cast latches make it a practical choice, although its indoor-only design and limited length may not suit all setups.

    Pros:
    • Supports up to 100Gbps data transfer rate
    • Easy hot-swappable connectors simplify installation
    • Low power consumption with minimal heat output
    • Durable zinc die-cast connectors ensure secure connections
    Cons:
    • Limited to indoor use only
    • Shorter length may restrict deployment options

    Best for: Data center administrators needing reliable, quick-connect cables within rack environments

    Not ideal for: Large-scale deployments requiring longer cable runs or outdoor use, where length and environmental durability matter

    • Length:7 ft
    • Connectors:QSFP28 to 4x SFP28
    • Data Transfer Rate:up to 100 Gbps
    • Cable Type:Passive DAC
    • Material:AWG 30 copper, PVC jacket
    • Compliance:MSA and IBTA
    Our verdict
    “This cable fits perfectly for short, high-speed connections inside data centers where ease of installation matters most.”
  13. Compatible with Extreme 10426 100Gb/s QSFP28 to 2x50G QSFP28 1m Breakout Twinax Cable

    Compatible with Extreme 10426 100Gb/s QSFP28 to 2x50G QSFP28 1m Breakout Twinax Cable

    Best for Extreme Switch Users Needing Compact, High-Speed Connectivity

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    This 1-meter passive cable is tailored for Extreme 10426 switches, supporting 100Gbps overall with 50Gbps per channel. It offers a compact length ideal for tight rack setups, but its specificity to Extreme hardware limits its versatility. Compared to the HPC Optics 3m Breakout Twinax, it’s shorter, which is advantageous for minimal space, yet less flexible for longer-distance needs.

    Pros:
    • Supports high-speed 100Gbps transfer
    • Designed specifically for Extreme 10426 switches
    • Compact 1-meter length ideal for tight spaces
    • Durable 5-year warranty
    Cons:
    • Limited to specific Extreme models
    • Only 1 meter long, restricting deployment flexibility

    Best for: Extreme 10426 switch users seeking reliable, high-speed interconnects in confined spaces

    Not ideal for: Users with non-Extreme hardware or those needing longer cable runs, as this cable is both model-specific and short

    • Compatibility:Extreme 10426
    • Data Rate:100Gbps
    • Channels:2x50G
    • Cable Length:1 meter
    • Type:Passive Copper Twinax
    • Warranty:5 years
    Our verdict
    “This cable is best suited for Extreme switch environments where space is limited and high-speed data transfer is critical.”
  14. Compatible with Fortinet FN-CABLE-QSFP28-4SFP28-1 100G QSFP28 to 4xSFP28 1m Breakout Twinax Direct Attach Cable DAC

    Compatible with Fortinet FN-CABLE-QSFP28-4SFP28-1 100G QSFP28 to 4xSFP28 1m Breakout Twinax Direct Attach Cable DAC

    Best for Fortinet Device Integration and Simplified Connectivity

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    This 1-meter passive breakout cable is designed for Fortinet devices, offering a straightforward way to connect a 100G port to four 25G SFP28 ports. It provides a reliable, high-speed link with a long-lasting 5-year warranty. Compared to the HPC Optics 3m Breakout Twinax, its shorter length makes it ideal for straightforward, compact setups, but it’s limited to Fortinet hardware, which could restrict broader network configurations.

    Pros:
    • Supports 100Gbps aggregate transfer
    • Compatible with Fortinet devices
    • Supports multiple ports with a single cable
    • Long-lasting 5-year warranty
    Cons:
    • Specific to Fortinet hardware
    • Limited length restricts flexibility
    • Passive cable may have some distance constraints

    Best for: Fortinet network administrators seeking a simple, high-speed solution for device-specific connectivity

    Not ideal for: Networks with diverse hardware types or longer-distance requirements, since it’s optimized for Fortinet devices and only 1 meter long

    • Compatibility:Fortinet FN-CABLE-QSFP28-4SFP28-1
    • Type:Breakout DAC
    • Data Rate:100Gbps
    • Connectors:QSFP28 to 4x SFP28
    • Length:1 meter
    • Warranty:5 years
    Our verdict
    “This cable is ideal for Fortinet users needing a compact, reliable high-speed connection between specific devices.”
  15. HPC Optics Compatible with Extreme 10423 100G QSFP28 to 4xSFP28 3m Breakout Twinax DAC

    HPC Optics Compatible with Extreme 10423 100G QSFP28 to 4xSFP28 3m Breakout Twinax DAC

    Best for Longer High-Speed Links in Extreme 10423 Environments

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    This 3-meter passive twinax cable provides a longer reach for Extreme 10423 switches, maintaining high-speed 100Gbps transfer capabilities. Compared to the shorter Extreme 10426 1m cable, it offers more flexibility for larger data center layouts, but its length may reduce some rigidity in cable management. As with the shorter option, its passive design might limit flexibility in complex setups, yet the 5-year warranty ensures durability.

    Pros:
    • Supports high-speed 100Gbps transfer
    • Compatible with Extreme 10423 switches
    • Longer 3-meter length for flexible deployment
    • Includes a 5-year warranty
    Cons:
    • Specific to Extreme 10423 switches
    • Passive design may have less flexibility for complex routing

    Best for: Extreme 10423 switch deployments requiring extended high-speed links in data centers

    Not ideal for: Settings where space is tight or where active cables might be preferred for greater flexibility over longer distances

    • Compatibility:Extreme 10423
    • Type:Breakout Twinax DAC
    • Data Rate:100Gbps
    • Connectors:QSFP28 to 4xSFP28
    • Length:3 meters
    • Warranty:5 years
    Our verdict
    “This cable suits high-speed, longer-distance connections in Extreme 10423 environments where flexibility is required.”
qsfp28 breakout cable
What makes a great qsfp28 breakout cable
1
Compatibility with Your Hardware
Ensuring that the breakout cable is compatible with your switches, servers, or network modules is vital.
2
Cable Length and Flexibility
Length impacts both installation flexibility and signal integrity.
3
Passive vs. Active DACs
Passive DACs are typically less expensive and suitable for short, direct connections but can suffer from signal degradation over l
4
Build Quality and Shielding
High-quality shielding and durable connectors prevent electromagnetic interference and physical damage.
How to choose your qsfp28 breakout cable
1
How we picked
Each cable was evaluated based on compatibility with major networking brands, build quality, signal integrity, length op
2
Compatibility with Your Hardware
Ensuring that the breakout cable is compatible with your switches, servers, or network modules is vital.
3
Cable Length and Flexibility
Length impacts both installation flexibility and signal integrity.
4
Passive vs. Active DACs
Passive DACs are typically less expensive and suitable for short, direct connections but can suffer from signal degradat
5
Build Quality and Shielding
High-quality shielding and durable connectors prevent electromagnetic interference and physical damage.
Vetted qsfp28 breakout cable ·
The best qsfp28 breakout cable, compared
★ Winner Compatible with Supermicro CBL
Best for Compact High-Speed Setup
15compared
5types

How We Picked

Each cable was evaluated based on compatibility with major networking brands, build quality, signal integrity, length options, and price. We prioritized products that have proven to deliver reliable high-speed connections and are widely compatible with popular switches and servers. Durability and ease of installation also played roles in our ranking, as cables that are too fragile or difficult to handle can cause ongoing issues. Our goal was to identify options that provide the best value for different types of users, from enterprise deployments to home labs, while considering real-world tradeoffs like passive versus active designs and length limitations.

Factors to Consider When Choosing Qsfp28 Breakout Cable

When choosing a qsfp28 breakout cable, understanding key factors beyond just technical specs can help you avoid common pitfalls and select the best cable for your setup. Consider your specific network hardware, performance needs, and future scalability to make a decision that balances cost with reliability. Here are the main factors to keep in mind:

Compatibility with Your Hardware

Ensuring that the breakout cable is compatible with your switches, servers, or network modules is vital. Many cables specify compatibility with brands like Supermicro, Mellanox, or Juniper. Mismatched cables can lead to connection issues or reduced performance. Always confirm the cable’s compatibility list before purchase, especially if you’re working with enterprise-grade hardware or specific vendor requirements.

Cable Length and Flexibility

Length impacts both installation flexibility and signal integrity. Shorter cables (1-2 meters) are generally more reliable for high-speed data transfer, but longer cables (3m or more) can simplify routing in complex setups. Be cautious of very long cables, which may introduce attenuation or noise, especially in passive designs. Choose a length that balances your physical layout with performance needs.

Passive vs. Active DACs

Passive DACs are typically less expensive and suitable for short, direct connections but can suffer from signal degradation over longer distances. Active DACs include circuitry to boost signal quality, making them more reliable over longer runs, though at a higher cost. Your choice depends on your setup’s distance and performance demands—passive for quick, short links, active for extended or critical applications.

Build Quality and Shielding

High-quality shielding and durable connectors prevent electromagnetic interference and physical damage. Cables with better shielding tend to support more stable connections, especially in noisy environments like data centers. Investing in well-built cables reduces the risk of costly downtime and replacement costs down the line, though it often means paying a premium.

Price and Future Scalability

While budget cables might suffice for temporary or small setups, investing in higher-quality cables can pay off in the long run through increased reliability and lifespan. Consider your future network expansion plans: selecting cables with higher durability and better shielding may save money and hassle later, especially if you plan to upgrade or extend your infrastructure.

Frequently Asked Questions

Can I use a qsfp28 breakout cable with different brands of switches?

In most cases, yes, as long as the cable is compatible with the port specifications (QSFP28) and meets the required standards. Many breakout cables are designed to be vendor-neutral, but some are optimized for specific brands or models. Always check the compatibility list provided by the manufacturer to avoid connection issues or suboptimal performance.

Is a passive breakout cable sufficient for long-distance connections?

Passive cables are generally best suited for short, direct connections within a rack or between nearby switches. Over longer distances, passive cables may experience signal loss or interference, reducing overall network stability. For longer runs, active or higher-quality shielded cables are recommended to maintain optimal performance.

How do I know if a breakout cable supports my network speed requirements?

Check the cable’s specifications for maximum supported data rates, typically listed as 100G or 25G per lane. Ensure that your networking hardware also supports these speeds, and verify that the cable’s design (passive or active) aligns with your performance expectations. Matching these elements ensures reliable, high-speed connections.

Are longer breakout cables more prone to failure or performance issues?

Longer cables can introduce signal attenuation, especially if they are passive and of lower quality. While some high-quality active cables are designed to handle extended lengths without issues, many budget options may experience reduced performance or intermittent connections over longer distances. Always consider the recommended maximum length for your specific cable type and application.

What should I do if my breakout cable is not recognized by my switch?

If your cable isn’t recognized, verify compatibility first. Ensure all connectors are securely plugged in and that your hardware supports breakout cables of that type and length. Sometimes firmware updates or configuration settings are needed. If issues persist, testing with a different cable or consulting the device’s manual can help identify whether the problem lies with the cable or the hardware.

Conclusion

For most users, the Compatible with Supermicro CBL-NTWK-0988-Q28M1 offers the best balance of performance and compatibility, making it ideal for enterprise or data center deployments. The 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable provides excellent value for smaller setups or budget-conscious buyers. Those seeking durability and long-term reliability should consider premium options like the HPC Optics Compatible with Extreme 10423. Beginners or those upgrading their home labs will benefit from straightforward, cost-effective options, while enterprise users should prioritize cables with robust shielding and active circuitry for critical links.

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