DAC Cable CBO 100G-QSFP-QSFP-P-0101 100G direct attach copper, QSFP to QSFP, 1.0 m

CBO DAC Cable 100G-QSFP-QSFP-P-0101 100G direct attach copper, QSFP to QSFP, 1.0 m is a 1.0 metre passive twinax copper assembly with QSFP connectors on both ends, designed to deliver a fixed 100 Gbps electrical connection for short-reach links. It is intended for high-bandwidth interconnects in data centres, providing a low-latency, low-power alternative to optical transceivers for rack-to-rack, chassis-to-chassis and top-of-rack (TOR) connections where distances do not exceed the cable’s range.

Advantages

The passive 100G DAC cable offers a compact, cost-effective solution for short-distance 100 Gbps links. Its QSFP-to-QSFP termination enables straightforward plug-and-play installation without the need for SFP/QSFP transceivers, reducing component count and power consumption. The direct copper medium ensures minimal signal conversion latency and stable throughput for typical data-centre switching and server interconnect scenarios. Physical design supports neat rack routing and reliable mechanical mating in dense equipment deployments.

Suitable for

• Rack-to-rack high-speed connections inside data centres
• Chassis-to-chassis links in modular networking systems
• Top-of-rack (TOR) switch uplinks to aggregation switches
• Short-reach server-to-switch interconnects where 100 Gbps is required

Key specifications

• Data rate: 100 Gbps
• Connector type: QSFP to QSFP (both ends)
• Cable type: passive direct attach copper (twinax)
• Length: 1.0 metre
• Typical use range: short-reach intra-rack and inter-rack links
• Latency: minimal due to direct electrical connection

How to use

Ensure both network ports support QSFP passive DAC modules and are powered down or in a safe state before insertion if required by the equipment vendor. Align the QSFP housings with the port guides and press the cable connector into the QSFP port until the latch engages. For removal, release the connector latch mechanism and pull straight out to avoid stressing the cable or port. Use appropriate bend radius and secure routing to prevent kinks; avoid sharp bends and mechanical strain on connectors. Verify link status on connected devices and, if necessary, configure port settings such as speed, lane mapping or auto-negotiation per the switch or server documentation.

Recommendations

Use the cable for short-distance, high-bandwidth connections inside racks or between adjacent racks. Store and route the cable to maintain its minimum bend radius and prevent connector damage. Confirm compatibility with your switch or server vendor guidelines for passive QSFP DAC modules and check firmware or port settings when deploying in mixed hardware environments.