StarTech.com 3m QSFP-H40G-CU3M Compatible QSFP+ Direct Attach Copper Cable - 40G QSFP+ Passive Twinax Cable - SFF-8436 - Black

The StarTech.com QSFPH40GCU3M is a high-performance 3-meter QSFP+ direct attach copper (DAC) cable designed for 40 Gigabit Ethernet networks. This passive twinaxial cable provides a cost-effective, low-latency solution for short-range connections between switches, routers, and servers within a data center or enterprise environment. Fully compatible with Cisco QSFP-H40G-CU3M and other industry-standard QSFP+ ports, it ensures seamless integration and reliable data transmission at 40 Gbps.

Advantages

This cable eliminates the need for separate transceivers and fiber optic cabling, reducing overall deployment costs and complexity. Its passive design consumes no power, making it an energy-efficient choice for high-density networking. The latching connectors provide a secure and stable connection, preventing accidental disconnection. With a length of 3 meters, it offers flexibility in rack-to-rack or rack-to-server cabling.

Suitable for

• Data center interconnects (Top-of-Rack to End-of-Row)
• High-performance computing clusters
• Enterprise network aggregation
• 40GBase-CR4 compliant network equipment

Key specifications

• Cable Type: Direct Attach Copper (DAC) - Passive
• Connector Type: QSFP+ to QSFP+
• Data Transfer Rate: 40 Gbps
• Cable Length: 3 m (9.8 ft)
• Cable Technology: Twinaxial
• Industry Standard: SFF-8436
• Color: Black
• Latching Mechanism: Yes

Recommendations

For optimal performance, ensure your network equipment supports 40GBase-CR4 and QSFP+ ports. This cable is ideal for short-distance, high-bandwidth connections within a single rack or between adjacent racks. Always handle with care to avoid damaging the connectors.