The 400GBASE-ER4 QSFP-DD transceiver is designed for high-speed data transmission over single-mode fiber (SMF) networks. It operates at wavelengths of 1295-1309nm and supports distances up to 40 kilometers, making it ideal for long-range connectivity.
Axiom QDD-400G-ER4-ALN-AX 400GBASE-ER4 QSFP-DD Transceiver Module