Description 4m (13ft) LC UPC to LC UPC Duplex OS2 Single Mode Patch Cable provides a 4-meter yellow single-mode link featuring precision LC UPC duplex connectors for high-density fiber networking. Built with a 2.0mm LSZH jacket, it ensures high reliability and low signal loss for short-range high-speed connectivity. This cable is a robust choice for enterprise and data center single-mode fiber architectures.