QDD-400G-LR4-S — QSFP-DD 400 Gbps

The QDD-400G-LR4-S is a Cisco QSFP-DD 400 Gbps transceiver compliant with the IEEE 400GBASE-LR4 standard, designed for 400G connections over single-mode fiber up to 10 km. It uses a duplex LC (UPC) connector and supports an extended temperature range of 0 to 75 °C, providing increased robustness in server room environments.

Designed for next-generation datacenters, this module delivers 400 Gbps over a standard fiber pair, significantly reducing cabling density. Its QSFP-DD form factor ensures compatibility with high-port-density chassis. Genuine Cisco module, manufacturer warranty.