Cisco MFE & MGE Small Form-Factor Pluggable (SFP) transceivers are easy-to-install modules that provide a simple way to add fiber connectivity or to add an extra Gigabit Ethernet port to your Cisco small business or Cisco small business pro series switches. The Cisco MFE & MGE transceivers provide fast & reliable connectivity between switches that are located on different floors, in separate buildings, or on a small campus network needing connectivity between sites. These transceivers can support both Fast & Gigabit Ethernet applications.