Diablo Cable 18530 GE SFP SX Multimode 550m Fiber Transceiver Sx multimode fiber transceiver Wavelength is 850nm 1000BASESX Fiber Type: 62.5/125 or 50/125 multimode fiber Works in fiber channel, HBA's, switches and other GE SFP applications Standards: SFP MSA, SFF8472, ITUT G.957 & .958, IEEE 802.3z, RoHS directive