QDD-400G-BD — QSFP-DD 100/400 Gbps

The Cisco QDD-400G-BD is a bidirectional (BiDi) QSFP-DD module supporting 100 or 400 Gbps over multimode fiber with a reach of 100 m. Its duplex LC (UPC) connector enables the use of a single fiber pair thanks to BiDi technology, reducing the MMF cabling required. It operates within a range of 0 to 70 °C, suitable for conventional data centers.

This transceiver is aimed at data center operators looking to migrate to 400G by reusing their existing duplex MMF fiber infrastructure, without having to quadruple the number of fibers. Its 100/400G flexibility enables a gradual transition. Genuine Cisco hardware, manufacturer warranty.