Cisco 1000base-Sx SFP Transceiver Module, MMF, 850mm,DOM

Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM. 1000BASE-SX SFP, compatible with the IEEE 802.3z 1000BASE-SX standard, operates on legacy 50 μm multimode fiber links up to 550 m and on 62.5 μm Fiber Distributed Data Interface (FDDI)-grade multimode fibers up to 220 m.