Description The Cisco QSFP-40G-SR-BD compatible 40GBASE-SRBD module delivers robust 40Gb/s performance via BiDi technology over duplex multimode fiber (MMF). Engineered for a reach of 100m (OM3) or 150m (OM4), it ensures high signal stability and ultra-low latency. This transceiver provides a fiber-saving and high-performance solution for Cisco networking upgrades to 40G using legacy 10G cabling.