QDD-400G-LR8 — Cisco QSFP-DD 400G

The QDD-400G-LR8 is a Cisco transceiver in QSFP-DD form factor operating at 400 Gigabit Ethernet via eight LR (Long Range) lanes over single-mode fibre. This LR8 module uses eight distinct wavelengths through WDM multiplexing, enabling significant reach over standard single-mode fibre, setting it apart from DR4 variants with four parallel lanes.

Ideal for long-range DCI (Datacenter Interconnect) links, 400G backbone connections between points of presence, or campus deployments requiring maximum capacity over a single fibre pair, the Cisco QDD-400G-LR8 is the solution of choice for architectures demanding reliability and reach. Genuine Cisco hardware, manufacturer warranty.