●OS2 LC-LC singlemode optic fiber cable, which is made of PVC/Low Smoke Zero Halogen (LSZH) plastic materials, tough, environmentally friendly, non-breakable, not easily deformed, easy to weld, and has stable transmission. Using zirconia ceramic ferrule, it has the characteristics of high return loss, low insertion loss, and low attenuation. ●This LC to LC Singlemode Duplex OS2 fiber patch cords operate at 0ºC to +70ºC. Low insertion loss: ≤0.3(dB), high return loss: ≥50(dB). 9/125μm fiber cables with dual small LC connectors are designed for 10 Gigabit applications in SAN networks and data centers. ●Meet the TIA/EIA 568-C.3 / 604-10 / 492AAAA, IEC60793-2-10 A1b standards and complies with RoHS specifications. It can transmit data for up to 10km at 1310nm, or up to 40km at 1550nm. ●This OS2 LC-LC Single Mode Duplex Fiber Patch Cord is ideal for connecting 10G LR, SFP+ transceivers, 1000GBASE-LX/LH module etc, suitable for 1G/10G/40G/100G/400G Ethernet connections, can be widely used in telecommunications networks, computer fiber optic networks and fiber optic testing equipment, etc. ●3-Year Warranty, free replacement and unconditional 90-day full refund guarantee. All cables are 100% optically tested to ensure high speed and low loss. If you have any questions, please feel free to contact us.