The Cisco GLC-SX-MM 10-2626-01 SFP 1000BASE Transceiver Module is a brand new, high-quality unit designed for use with Cisco networking equipment. It offers fast data transfer rates of up to 1000 Mbps/1 Gbps, making it ideal for high-speed network connections. This module is compatible with Cisco networking devices and features a single SFP port for easy connection and use. Made in China, this transceiver module is a reliable and efficient component for enhancing network performance and connectivity.