The SFP-10G-SR Transceiver Module from Cisco module supports a link length of 85′ (26 m) on standard Fiber Distributed Data Interface (FDDI) grade multi-mode fiber (MMF). Using 2000 MHz*km MMF (OM3), up to 984′ (300m) link lengths are possible. Using 4700 MHz*km MMF (OM4), up to 1312′ (400m) link lengths are possible. SwitchTechSupply One of the best Hardware provider.