"Cisco Small Business MGBLX1 - SFP (Mini-GBIC)-Transceiver-ModulCisco® MFE and MGE Small Form-Factor Pluggable (SFP) or mini Gigabit Interface Converter (mini-GBIC) 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.
1000Base-LXDual LCSMF fiber type1310 nm wavelength10 km operating distanceThe Cisco MFE and MGE transceivers provide 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.
These transceivers can support both Fast and Gigabit Ethernet applications.
Adds fiber-optic connectivity to Cisco Small Business and Cisco Small Business Pro Series switchesHigh-performance link for connecting networks within a building or small campus areaEasy removal with an integrated spring latchHot swappable to maintain network availability"