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 and 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 and Gigabit Ethernet applications.