The FS- Cisco compatible 1000Base-LX/LH SFP Transceiver 1310nm 10 km SFP-1G-LX-31 is a high-quality networking device designed for use with Cisco routers and switches. With a maximum data rate of 1000 Mbps/1 Gbps, this transceiver is suitable for a variety of networking applications requiring fast and reliable data transmission. The SFP connectors provide a secure and efficient way to connect the transceiver to compatible network ports, making it a valuable addition to any network infrastructure. Made in China by FS, this unit is reliable and compatible with a range of networking equipment from Cisco.