Cisco QDD-400G-SR4.2-BD Compatible 400G QSFP-DD SR4 BiDi PAM4 850nm/910nm 100m/150m OM4/OM5 MMF MPO-12 FEC Optical Transceiver Module
Cisco QDD-400G-SR4.2-BD Compatible 400G QSFP-DD SR4 BiDi Module supports 400G Ethernet and link lengths over OM4/OM5 Multimode Fiber (MMF) at distances of up to 100m/150m.