InfiniBand/fibre optic cable BlueOptics CBL-NTWK-0942-MQ28C10M-BL 1 m QSFP28 Male/Male

The BlueOptics CBL-NTWK-0942-MQ28C10M-BL is a 1 m InfiniBand/fibre optic style direct attach cable with QSFP28 male-to-male connectors designed for short-reach high-speed links. It is intended for use where reliable 100G connectivity between rack-mounted switches, routers, servers or storage systems is required. The cable supports protocols commonly carried over QSFP28 physical connections, delivering a compact, low-latency interconnect for data center and network equipment that accept QSFP28 direct attach copper/twinax connections.

Advantages

This 1 m QSFP28 male-to-male cable offers a simple plug-and-play connection that eliminates the need for separate transceiver modules for short-distance links. The passive construction results in low power consumption and reduced latency compared with active optical transceivers for comparable short-reach use. Built to meet defined MSA mechanical and electrical requirements, the cable is compatible with platforms that accept QSFP28 direct attach cables and is intended to provide stable signal transmission for Ethernet, Fibre Channel and InfiniBand applications up to 100 Gbps on short runs.

Suitable for

• Connecting QSFP28 ports between adjacent rack devices (switch-to-switch, switch-to-server)
• Short-reach 100G links in data center top-of-rack and adjacent-rack configurations
• High-bandwidth interconnects for storage systems, routers and compute nodes

Key specifications

• Cable length: 1 meter
• Connector type: QSFP28 male to QSFP28 male
• Supported link rate: up to 100 Gbps (protocol-dependent)
• Cable type: direct attach (passive twinax / short-reach copper-style direct attach)
• Construction: MSA-compliant QSFP28 electrical interface

How to use

Ensure both devices have compatible QSFP28 ports that support passive direct attach cables. With equipment powered down or in a maintenance window as required by your operations policy, align and insert each QSFP28 connector into the respective port until the latch engages. After physical installation, verify link status in device management interfaces and confirm negotiated speed and protocol. If needed, power-cycle or reconfigure port settings per the vendor documentation to enable the link. For removal, release the connector latch and withdraw straight out to avoid damaging the port.

Recommendations

Use this 1 m QSFP28 direct attach cable for short-distance connections inside racks or between adjacent racks. Avoid sharp bends and excessive tensile force, keep the cable away from heat sources, and follow equipment vendor guidance on compatibility with passive direct attach cables to ensure reliable 100G operation.