QDD-400-CU0.5M — QSFP-DD 400 Gbps

The Cisco QDD-400-CU0.5M is a pre-terminated Direct Attach Copper (DAC) cable in QSFP-DD form factor, delivering 400 Gbps over a length of 0.5 m. As a passive solution with no optical emission, this copper cable ensures ultra-low latency and minimal power consumption compared to active optical solutions. It is suited to intra-rack connections where the distance is under one meter and the throughput must reach 400G.

Ideal for directly connecting ToR switches and servers within the same rack, the Cisco QDD-400-CU0.5M simplifies high-density 400G cabling by eliminating the complexity of optical transceivers. Its 0.5 m length reserves it for very compact configurations. Genuine Cisco hardware, manufacturer warranty.