DAC cable CBO 100G QSFP Fujitsu S26361-F5294-L110 5m

Direct attach copper (DAC) cable CBO 100G QSFP Fujitsu S26361-F5294-L110 5m is a passive twinax cable designed for 100 Gbps links between QSFP-enabled networking equipment. The BlueOptics CBO cable offers a fixed 5 metre length and QSFP form-factor connectivity to enable short-range, high-speed interconnects in data centres and server rooms. It is intended for direct QSFP-to-QSFP connections and is compatible with Fujitsu QSFP ports, delivering low latency and efficient power characteristics typical of passive DAC solutions.

Advantages

The cable provides reliable 100G throughput with minimal signal loss across a 5 m distance, reducing the need for optical transceivers and associated power consumption. Its passive twinax construction simplifies deployment for short-reach links and typically results in lower overall cost and reduced heat generation compared with active or optical alternatives. The fixed-length design ensures predictable electrical performance and straightforward cable management in rack and chassis environments.

Suitable for

• High-speed switch-to-switch links in top-of-rack and aggregation layers
• Server-to-switch connections for 100G-capable network interface cards
• Short-range data centre interconnects and appliance cabling
• Environments where low latency and reduced power use are priorities

Key specifications

• Data rate: 100 Gbps
• Connector type: QSFP to QSFP (QSFP form-factor twinax)
• Length: 5 metres
• Construction: Passive twinax copper
• Typical use range: short-reach, within rack or between adjacent racks
• Primary benefits: low latency, low power consumption for direct attach links

How to use

Insert each QSFP connector into the corresponding QSFP port on your networking devices until the connector latches. Ensure both ends are fully seated and device interfaces are configured for 100G operation. Avoid sharp bends and excessive tension on the cable; route it according to your rack management practices to prevent strain on connectors. No external power or additional transceivers are required for passive operation. After installation, verify link status and performance using device diagnostics and monitoring tools.

Recommendations

For optimal performance, keep cable runs within the specified short-reach environment and maintain bend radius recommendations from the equipment manufacturer. Use the 5 m length where direct rack-to-rack or within-rack connections are planned, and confirm QSFP port compatibility in device firmware or compatibility lists before deployment.