DAC cable CBO Supermicro CBL-0325L 30 m QSFP direct attach copper

The DAC cable CBO Supermicro CBL-0325L 30 m QSFP direct attach copper is a fixed copper interconnect designed for short-reach data center links. This 30-metre QSFP-compatible cable provides a direct connection between QSFP ports on switches, servers and storage systems without the need for separate optical transceivers. Its construction focuses on reliable signal transmission, low latency and straightforward installation for rack-to-rack or within-rack topologies.

Advantages

This direct attach copper cable delivers a cost-effective alternative to optical transceivers and fiber when distances are within its supported reach. The QSFP-compatible end connections simplify integration with high-density networking equipment. The fixed copper design reduces component count and power draw compared with active optical solutions, while offering consistent signal integrity for short-distance links in data centers.

Suitable for

• Short-reach rack-to-rack or within-rack connections in data centers
• Direct QSFP port interconnects between switches, servers and storage arrays
• High-density networking setups that require compact, low-latency links

Key specifications

• Length: 30 metres
• Connector type: QSFP-compatible direct attach copper
• Cable type: Fixed copper DAC for short-reach links
• Application: 40Gb/100Gb-class QSFP port interconnects (dependent on host device compatibility)
• Design emphasis: Low latency, high-density interconnect

How to use

Install the cable by aligning and inserting each QSFP-compatible plug into the corresponding QSFP port on the two devices to be connected. Ensure both devices are powered down or that hot-plugging is supported by the equipment before insertion. Verify link status on connected devices and consult device firmware or operating system interfaces for any required port configuration. Secure cable routing within racks to avoid strain on connectors and maintain recommended bend radius during installation.

Recommendations

Use this DAC cable for short intra-rack and inter-rack links where optical transceivers are unnecessary. Confirm compatibility with the QSFP ports on your switches, servers or storage systems and follow equipment vendor guidelines for supported cable lengths and data rates.