Network Cable BlueLAN QSFP-40G-1M-CM QSFP 40GBASE-CR4 1 Meter Blue

The BlueLAN QSFP-40G-1M-CM is a 1-meter direct attach cable designed for 40G Ethernet and InfiniBand QDR environments. Constructed with 30AWG conductors and QSFP connectors on both ends, the cable provides a low-latency, high-bandwidth physical link for short-reach connections inside racks and between adjacent network equipment. Its plug-and-play QSFP interface enables simple installation without additional transceivers, supporting standard 40GBASE-CR4 signaling for compatible switches, routers and host adapters.

Advantages

This direct attach cable delivers predictable electrical performance for 40G links while reducing system cost and power compared to optical transceivers. The 1 m length minimizes excess cable slack in dense rack deployments and helps maintain signal integrity. QSFP connectors provide a secure mechanical fit and straightforward hot-pluggable operation. The 30AWG construction balances flexibility and shielding to support reliable short-range data transfer with low latency and consistent throughput.

Suitable for

• Top-of-rack and middle-of-row switch-to-switch connections
• Server to network adapter links in data centers
• High-performance computing clusters using InfiniBand QDR
• Short-reach interconnects where 40GBASE-CR4 is supported

Key specifications

• Connector type: QSFP on both ends
• Nominal length: 1 meter
• Cable gauge: 30 AWG
• Protocol support: 40G Ethernet, InfiniBand QDR
• Signaling standard: 40GBASE-CR4
• Typical use: Short-reach direct attach copper

How to use

Install the BlueLAN QSFP direct attach cable by aligning the QSFP connectors with the corresponding QSFP ports on your network equipment and inserting until the latch engages. No external transceivers or additional configuration are required for native 40GBASE-CR4 or InfiniBand QDR links when the connected devices support direct attach copper. Route the cable within the rack to avoid sharp bends and maintain bend radius consistent with datasheet guidance. For hot-plug operations, ensure the host equipment supports hot-pluggable QSFP modules and follow standard electrostatic discharge precautions during handling.

Usage recommendations

Use this cable for short-reach, high-bandwidth connections where cost, power consumption, and latency are priorities. Avoid using beyond its intended 1 m reach and verify compatibility with equipment QSFP port firmware and vendor support lists when deploying in production environments.