BlueOptics BlueLAN QSFP56 Direct Attach Cable 200GBASE-CR4 compatible Infortrend 2m 30AWG

BlueOptics BlueLAN QSFP56 Direct Attach Cable is a twinax copper assembly designed for 200GBASE-CR4 short-reach links. With a 2-meter length and 30AWG conductors, this cable provides a direct QSFP56-to-QSFP56 connection for compatible Infortrend equipment, top-of-rack switches, storage arrays and server interconnects. It delivers low latency and low power consumption characteristics typical of direct attach copper, enabling cost-effective high-speed connectivity inside racks and between adjacent racks in data center environments.

Advantages

The cable offers compact twinax construction with 30AWG conductors to maintain signal integrity over the specified 2 m distance while minimising insertion loss. Direct attach design eliminates the need for separate transceivers, reducing system cost and power draw. Compatibility with 200GBASE-CR4 signaling and QSFP56 form-factor ports ensures straightforward plug-and-play deployment in suitable infrastructures. Its copper construction provides predictable performance for short-range links and is robust for repeated insertions in rack-mounted hardware.

Suitable for

• Short-range 200G connections between QSFP56 ports in data center racks
• Top-of-rack switches to storage arrays or servers using QSFP56 interfaces
• High-density rack interconnects where low latency and low power are required

When it may not be suitable

This direct attach twinax cable is intended for short-reach copper connections and is not suitable for long-distance links or for environments requiring optical fiber cabling. It is not intended as a field-terminated cable; both ends are fixed QSFP56 connectors and cannot be adapted to other form factors without appropriate hardware.

Key specifications

• Form factor: QSFP56 to QSFP56 twinax direct attach
• Data rate: Compatible with 200GBASE-CR4
• Length: 2 meters
• Conductor gauge: 30 AWG
• Medium: Copper twinax
• Typical use: Short-range, in-rack or adjacent-rack connections

How to use

Connect one QSFP56 connector to the source port and the other QSFP56 connector to the destination port, ensuring both devices support 200GBASE-CR4 or compatible QSFP56 electrical interfaces. Insert connectors until the latch engages to secure the connection. No additional transceivers or fiber patching are required. Monitor link status on connected devices to confirm negotiation and correct operation. Handle the cable by the connector housings and avoid tight bends near the connectors to preserve signal integrity.

What to consider before purchase

• Confirm both devices support QSFP56 electrical interfaces and 200GBASE-CR4 signaling
• Verify that a 2 m fixed-length cable fits the intended rack layout and cable management
• Ensure copper twinax is acceptable for your distance and electromagnetic environment

Usage recommendations

For reliable operation, use the cable within rack or adjacent-rack installations, avoid sharp bends and excessive strain, and check device compatibility for QSFP56 and 200GBASE-CR4. Regularly inspect connector housings for damage and reseat if link errors occur.