A MANUFACTURER - 14 years ISO certified manufacturer, assembly SFP transceiver, fiber patch cords, media converter and networking system. HIGH QUALITY MATERIALS - PVC/LSZH fiber cable; Insertion loss fiber core; Zirconia ceramic ferrules; Aramid inside optical cable; High temperature resistant connector. RELIABILITY TESTING - 100% insertion loss test; MMF: Insertion loss0.3(dB), Return loss35(dB). STANDARDS COMPLIANT - TIA/EIA 568-C.3 / 604-10 / 492AAAA, IEC60793-2-10 A1b, CE and RoHS. WIDE APPLICATION - works with all brands of multimode SFP transceivers and fiber optic networks.