CBO DAC cable QSFP28 SC282801L5M26, direct-attach copper, 5 m

CBO DAC cable QSFP28 SC282801L5M26, direct-attach copper, 5 m is a 5‑metre direct-attach copper interconnect designed for QSFP28 ports. Built for short‑reach, high‑speed connections, this cable provides a low‑latency, point‑to‑point link between QSFP28‑equipped switches, servers and network adapters without the need for separate optical transceivers. The fixed copper assembly simplifies rack cabling and reduces power consumption compared with optical module solutions, making it suitable for dense data centre top‑of‑rack and spine deployments.

Advantages

The direct-attach copper design offers predictable electrical performance and low latency for 100GbE or compatible high‑speed links. Its 5 m length supports flexible rack placement while avoiding additional transceiver purchases and associated power draw. The cable is factory‑terminated for plug‑and‑play installation into QSFP28 ports, reducing deployment time and minimizing connector compatibility issues. By eliminating optical modules, it lowers operating costs and simplifies spare parts management.

Suitable for

• Short‑reach 100GbE connections between top‑of‑rack switches and servers
• Spine‑to‑leaf or switch‑to‑switch links in data centre fabrics
• High‑density cabling environments where power efficiency is important
• Environments that require plug‑and‑play direct copper links without transceivers

Key specifications

• Interface type: QSFP28 to QSFP28 direct‑attach copper
• Length: 5 metres
• Cable medium: twinaxial copper assembly
• Supported data rates: suitable for 100GbE and compatible QSFP28 speeds
• Latency: low electrical latency for short‑reach links
• Connector: factory‑terminated QSFP28 plugs on both ends

How to use

Insert each QSFP28 connector into the corresponding QSFP28 port on network switches, servers or adapters until the latch engages. Ensure ports are powered down or follow hot‑swap procedures recommended by the equipment vendor when inserting or removing the cable. After connection, configure the network interfaces according to your switch or server operating system to enable the desired link speed and protocols. Monitor link status via device management interfaces to confirm proper negotiation and operation.

Recommendations

Use this direct-attach copper cable for short interconnects within the same rack or adjacent racks. Avoid routing the cable near high‑power conductive sources or sharp bends; maintain the manufacturer’s recommended minimum bend radius. For longer distances or where optical isolation is required, consider optical transceiver solutions instead.