Cisco MGE Small Form-Factor Pluggable (SFP) is easy-to-install module that provides a simple way to add fiber connectivity or to add an extra Gigabit Ethernet port to your Cisco Small Business Series switches. The Cisco MGE transceiver provides fast & reliable connectivity between switches that are located on different floors, in separate buildings, or on a small campus network needing connectivity between sites. The transceiver can support both Fast & Gigabit Ethernet applications. Please note: networking components such as switches, routers, UPS & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance.