Cisco GLC-SX-MMD 1000BASE-SX SFP Transceiver Module Overview The GLC-SX-MMD 1000BASE-SX SFP is made for Multimode Fiber only. The 1000BASE-SX SFP, compatible with the IEEE 802.3z 1000BASE-SX standard, operates on legacy 50 mu,m multimode fiber links up to 550 m and on 62.5 mu,m Fiber Distributed Data Interface (FDDI)-grade multimode fibers up to 220 m. It can support up to 1km over laser-optimized 50 mu,m multimode fiber cable. 850-nm wavelength, extended operating temperature range and DOM support, dual LC/PC connector. Specifications Cisco Coded, 1000BASE-SX SFP, for multimode fiber, 850nm, 100-550m, extended operating temperature range, LC duplex connector, DOM, Solid Optics Form Factor : SFP Manufacturer Part # : GLC-SX-MMD= Solid Optics Part # : GLC-SX-MMD-SO Compatibility : Cisco compatible Distance : 100-550m Wavelength : 850 Speed : 1G Connector : LC Individually Tested : Yes Power Budget Verification : Yes Lifetime Warranty : Yes Type : Regular Fiber Type : Multi Mode