BlueOptics compatible BlueLAN DAC QSFP56 BL070701W2M30 – passive direct-attach copper cable QSFP56, 2m

BlueOptics compatible BlueLAN DAC QSFP56 BL070701W2M30 is a passive direct-attach copper (DAC) twinax cable with QSFP56 connectors and a 2 m length. It is designed for short-reach, high-bandwidth interconnects between QSFP56 ports and supports multi-rate operation for 200 GbE, 100 GbE and 50 GbE environments. The cable provides a low-latency, low-power alternative to optical transceivers for top-of-rack, end-of-row and server-to-switch connections in data center and enterprise network racks.

Advantages

This passive QSFP56 twinax cable delivers deterministic performance with minimal signal conversion overhead, helping to reduce latency and power consumption compared with active optical modules. Its fixed 2 m length simplifies cable management for short-distance links and eliminates the need for additional transceivers or fiber patching. As a compatible BlueOptics BlueLAN solution, the cable is intended to offer reliable electrical interconnect characteristics and plug-and-play operation with standard QSFP56 ports.

Suitable for

• Short-reach server-to-switch connections in data centers
• Switch-to-switch links within the same rack or adjacent racks
• High-bandwidth uplinks in aggregation and spine-leaf architectures
• Low-latency interconnects for storage and compute clusters

Key specifications

• Connector type: QSFP56 to QSFP56 twinax
• Cable type: Passive direct-attach copper (DAC) twinax
• Supported data rates: 200 GbE, 100 GbE, 50 GbE (multi-rate)
• Length: 2 meters
• Latency: low, electrical direct-attach link
• Power: passive operation with reduced power compared to optical transceivers
• Compatibility: designed for QSFP56 ports on switches, routers and servers

How to use

Connect one QSFP56 end of the BlueOptics BlueLAN DAC to an available QSFP56 port on the source device and the other end to the QSFP56 port on the destination device. Ensure both devices are powered and configured to use the same data rate and link settings. The passive cable requires no external power or transceiver configuration; the host devices negotiate link parameters automatically. Verify link status via device LEDs or management interface after insertion.

Usage recommendations

Use the 2 m passive QSFP56 DAC for short-distance links where low latency and low power are priorities. Avoid routing the cable near high electromagnetic interference sources and maintain proper bend radius to preserve signal integrity. For longer runs or where optical isolation is required, consider fiber optic transceivers instead.