DAC cable CBO QSFP to QSFP 1 m, model CAB-Q-S-1M

Direct Attach Copper (DAC) cable CBO QSFP to QSFP 1 m (model CAB-Q-S-1M) by BlueOptics is a fixed-length, plug-and-play copper interconnect designed for short-reach, high-speed links between QSFP ports. The cable provides a low-latency, low-power physical connection for top-of-rack switches, aggregation switches, routers and server QSFP ports in data center environments. With a 1 metre length and QSFP-to-QSFP connectors, this DAC cable is intended for reliable patching and direct server or switch-to-switch connectivity where fiber transceivers are not required.

Advantages

The DAC cable offers a cost-effective and energy-efficient alternative to active optical cables for short distances, eliminating the need for separate transceivers and reducing system power consumption. Its fixed length and integrated QSFP connectors simplify installation and inventory management while delivering consistent electrical performance suitable for high-throughput environments. The copper assembly supports low latency and stable signal integrity for demanding networking applications.

Suitable for

• Top-of-rack and leaf-spine connections in data centers
• Direct server-to-switch or switch-to-switch interconnects
• Short-reach aggregation and high-bandwidth patching
• Environments prioritizing low latency and reduced power usage

Key specifications

• Interface: QSFP to QSFP copper direct attach
• Length: 1 metre
• Form factor: Fixed-length, integrated connectors
• Typical use: Short-reach high-speed interconnection
• Latency: Low, suitable for high-throughput networking
• Power: Lower system power compared with optical transceivers plus separate cables

How to use

Insert each QSFP connector into the corresponding QSFP port on the networking devices until the latch engages, ensuring proper orientation and securely seated connections. No additional drivers or configuration are required at the cable level; the connected devices will detect the link according to their port and transceiver settings. For best results, route the cable to avoid sharp bends and mechanical strain on the connectors, and verify link status through device LEDs or management interfaces after installation.

Usage recommendations

Use this QSFP-to-QSFP DAC for connections within the same rack or adjacent racks where the 1 m length provides a direct, low-latency path. Avoid environments with significant electromagnetic interference and maintain bend radius guidelines to preserve signal integrity. Confirm device compatibility with QSFP copper direct attach cables before deployment to ensure supported data rates and link operation.