BlueOptics AT-QSFP28-1CU-BL InfiniBand/fibre optic cable 1 m QSFP28 Male/Male

The BlueOptics AT-QSFP28-1CU-BL is a 1 m InfiniBand/fibre optic cable with QSFP28 Male to QSFP28 Male connectors designed for high-speed data transmission in data centres and networking environments. The cable is intended for short-range direct attach links and supports 100G data rates over a 1 metre passive twinax copper configuration, offering reliable electrical signal transfer between compatible QSFP28 ports.

Advantages

This QSFP28 Male/Male direct attach cable provides a compact, low-latency connection for rack-to-rack and intra-rack links. As a passive 100G twinax solution, it consumes minimal power and has a straightforward design that reduces failure points. The cable is manufactured to established MSA-compatible dimensions and uses high-quality components to ensure consistent performance and a long operational lifetime.

Suitable for

• Short-range 100G connections between switches and routers in data centre racks
• High-speed links for storage systems and server interconnects
• InfiniBand and Ethernet fabrics requiring QSFP28 interfaces
• Applications where low latency and low power consumption are important

Key specifications

• Connector type: QSFP28 Male to QSFP28 Male
• Length: 1 metre
• Data rate: up to 100 Gbit/s over 1 m (100GBase-CR4 compatible)
• Cable type: passive twinax copper (30 AWG typical for this class)
• Applications supported: Ethernet, InfiniBand, FCoE, and Fibre Channel at compatible rates

How to use

Install the cable by seating each QSFP28 connector into the corresponding QSFP28 port until the latch engages. Use the cable for direct attach connections between compatible QSFP28 ports on switches, routers, storage systems or servers. Verify that the connected hardware supports passive QSFP28 direct attach twinax cables and the required 100GBase-CR4 or equivalent transmission protocol. Monitor link status and performance through the host devices after installation.

Usage recommendations

For reliable operation, route the cable to avoid sharp bends and mechanical stress, keep the length to the intended short-reach use (1 m) and ensure both endpoints officially support passive QSFP28 DACs. If device firmware or vendor compatibility lists are available, confirm support for 100GBase-CR4 or equivalent prior to deployment.