QDD-4ZQ100-CU2M — QSFP-DD 400 Gbps

The Cisco QDD-4ZQ100-CU2M is a passive QSFP-DD 400 Gbps DAC cable in breakout configuration to 4 QSFP28 100G ports, with a length of 2 m. This intermediate variant of the QDD-4ZQ100 family is optimized for intra-rack connections between a 400G switch and 100G servers or devices positioned approximately two rack units away. Passive operation delivers minimal latency and zero power consumption.

The QDD-4ZQ100-CU2M is aimed at datacenter architectures seeking to consolidate four 100G links into a single 400G port in compact rack configurations. It is particularly valued in space-constrained environments where longer cables would create unmanageable excess slack. Genuine Cisco hardware, manufacturer warranty.