QDD-400-CU2.5M — QSFP-DD 400 Gbps

The QDD-400-CU2.5M is a Cisco Direct Attach Copper cable in QSFP-DD form factor, offering 400 Gbps aggregate throughput over a fixed length of 2.5 m. This passive, pre-terminated cable is the most cost-effective solution for connecting two 400G devices less than 3 m apart, with no optical conversion and no separate modules.

Primarily used for interconnections between spine switches and core routers located in the same bay or in adjacent bays, this QSFP-DD DAC enables 400 Gbps deployment at low cost and low latency. Ideal for high-density hyperscale architectures. Genuine Cisco hardware, manufacturer warranty.