BlueOptics QSFP56 Direct Attach Cable 200GBASE-CR4, QSFP56 to QSFP56, 30AWG, 1 m

BlueOptics QSFP56 Direct Attach Cable 200GBASE-CR4, QSFP56 to QSFP56, 30AWG, 1 m is a passive copper twinax cable designed for short-reach 200G Ethernet links. It provides a QSFP56-to-QSFP56 connection using 30AWG conductors over a 1 metre length, enabling high-throughput, low-latency links between switches, routers and servers in data centre top-of-rack and aggregation layers. The cable supports 200GBASE-CR4 signalling and is intended for environments where a cost-effective, low-power physical link is required for short distances.

Advantages

The cable delivers a direct, low-latency connection with reduced power consumption compared with active optical solutions and does not require separate transceivers. Its 30AWG construction provides reliable electrical performance for 200GBASE-CR4 links at 1 m length, and the QSFP56 form factor ensures compatibility with equipment that accepts QSFP56 passive DACs. The single-cable solution simplifies rack cabling and lowers overall link cost for short interconnects.

Suitable for

• Short-reach 200G links between top-of-rack switches and aggregation switches
• Server-to-switch connections in data centre racks
• High-density patching in switch fabric and spine-leaf architectures
• Environments where passive twinax cabling is preferred for cost and power reasons

Key specifications

• Interface: QSFP56 to QSFP56
• Data rate: 200G (200GBASE-CR4)
• Cable type: Passive twinax (direct attach copper)
• Conductor gauge: 30AWG
• Length: 1 m
• Connector form factor: QSFP56
• Typical use: Short-reach intra-rack and inter-rack links

How to use

Insert each QSFP56 connector into the corresponding QSFP56 port on network equipment until the latch engages. Ensure both ends are fully seated and the cable routing does not place excessive strain on the connectors. Confirm link status through the host device’s management interface or LED indicators to verify proper operation at 200G. For best results, use this passive DAC for direct connections within the supported 1 metre distance and in systems that accept passive QSFP56 modules.

Usage recommendations

Use this cable for short-distance, high-bandwidth connections inside racks or between adjacent racks; avoid tight bends, kinks and exposure to mechanical stress. Verify equipment compatibility with passive QSFP56 DACs before deployment and observe ESD precautions when handling connectors.