Direct-Attach Copper DAC Cable BlueOptics MC2207130-003 56Gbps QSFP to QSFP Passive Twinaxial

BlueOptics MC2207130-003 is a passive direct-attach copper (DAC) cable with QSFP-to-QSFP connectors engineered for short-reach, high-speed interconnects. Supporting aggregate data rates up to 56Gbps, this twinaxial cable is intended for direct connections between QSFP ports in switches, routers and servers. Its design focuses on low latency and predictable signal integrity for rack-to-rack and intra-rack links in data centers and network closets.

Advantages

The passive twinaxial construction provides a low-cost, low-power alternative to optical transceivers for short distances, minimizing signal conversion and active components. With QSFP-to-QSFP connectivity and a 56Gbps capability, the cable supports high-density deployments and simplifies port-to-port linking. Its factory-terminated connectors reduce installation time and help maintain consistent electrical performance across short links.

Suitable for

• Rack-to-rack connections within a single equipment room
• Intra-rack server-to-switch or switch-to-switch links
• Top-of-rack networking in data centers
• High-density aggregation and spine-leaf architectures

Key specifications

• Connector type: QSFP to QSFP passive twinaxial
• Aggregate data rate: up to 56Gbps
• Cable type: Direct-attach copper (DAC), passive
• Latency: low, suitable for short-reach interconnects
• Typical use distance: short-reach (rack and intra-rack)

How to use

Ensure both devices have QSFP ports that support passive DAC connections at the required data rate. Route the cable to avoid sharp bends and excessive tension; maintain the manufacturer’s minimum bend radius for twinaxial cable. Insert each QSFP end firmly into the corresponding port until the latch engages. Verify link status on connected devices and confirm the expected interface speed and connectivity through device management interfaces or LEDs.

Usage recommendations

Use this passive QSFP-to-QSFP DAC for short interconnects where cost, power efficiency and low latency are priorities. Avoid longer runs beyond typical intra-rack and rack-to-rack distances; for longer links, consider active DACs or optical transceivers. Check compatibility with switch and server firmware or vendor compatibility lists when deploying in heterogeneous environments.