Cisco QDD-400G-LR4-S 400GB BASE-LR4 1310nm SMF LC 10km QSFP-DD Transceiver

The Cisco QDD-400G-LR4-S is a single-mode fiber (SMF) transceiver module manufactured by Cisco. It uses the QSFP-DD form factor and supports data transmission speeds up to 400 Gbps over four wavelengths at 1310 nm via LC duplex connectors.

This transceiver supports up to 10 km cable distance on SMF, suitable for long-haul or interconnect applications in high-bandwidth networks. Designed for use with compliant QSFP-DD ports, it operates using standard power class specifications without internal fans or special mounting requirements.

Cisco QDD-400G-LR4-S: 400G QSFP-DD Transceiver, 400G-LR4, Duplex LC, 10km Duplex SMF