OS2 fiber is a low-loss single mode fiber designed for long-distance, high-bandwidth, and future-ready optical communication networks. OS2 Fiber Optic Cables are available at Mouser Electronics. This article explains the core differences between OS1 and OS2 singlemode fibers, as well as OM3, OM4, and OM5 multimode fibers—to help OEM clients, installers, and data center engineers make informed decisions. Most OS1 solutions are commonly used in Indoor Fiber Optic Cable applications such as enterprise buildings, telecom rooms, and indoor backbone. FS offers single mode duplex fibre patch leads & cables for 1G/10G/40G/100G/400G Ethernet fibre connections that can transport data up to 10km at 1310nm and 40km at 1550nm.