Alcatel-Lucent QSFP+ 40G Direct Attach Copper Cable, 1m, Passive, 40GBase-CR4

Direct Attach Copper (DAC) cable delivering 40 Gigabit Ethernet connectivity with ultra-low latency for short-reach data center and enterprise networking. This passive QSFP+ to QSFP+ assembly provides a cost-effective alternative to optical transceivers while ensuring reliable 40Gbps performance over a 1-meter distance.

Advantages

Engineered for efficiency, this cable consumes less than 0.5W per end, significantly reducing power and cooling costs compared to active optical solutions. Its hot-swappable design allows for quick installation without network downtime, and the robust PVC jacket ensures durability in demanding environments.

Suitable for

• High-density 40GbE Top-of-Rack (ToR) switch-to-server connections
• Short-distance interconnects within racks and adjacent cabinets
• Data centers, enterprise core networks, and high-performance computing clusters
• Environments requiring low latency and minimal electromagnetic interference

Key specifications

• Connector type: QSFP+ to QSFP+
• Cable length: 1 meter (3.3 ft)
• Data rate: 40 Gbps (40GBase-CR4)
• Cable medium: Copper, passive, 26 AWG
• Impedance: 100 Ohm
• Compliance: SFF-8436, IEEE 802.3ba, RoHS
• Operating temperature: 0°C to 70°C

Recommendations

Ideal for network architects seeking a reliable, plug-and-play 40G interconnect that minimizes cost per port without sacrificing performance. Verify compatibility with your equipment's QSFP+ ports and ensure the 1-meter length suits your rack layout.