Description Cisco QSFP-100G-SR1.2 Compatible is a 100GBASE-SRBD (BiDi) QSFP28 transceiver reaching 70m on OM3, 100m on OM4, and 150m on OM5 multi-mode fiber. By using 850nm BiDi technology and a duplex LC connector, it allows for a 100G upgrade over existing 10G/40G duplex multi-mode fiber cabling. This module is a cost-effective solution for data centers looking to minimize cabling costs during network speed transitions.