Cisco Small Business MGBLH1 - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-LH - LC - up to 40 km - 1310 nm - for Business 110 Series, 220 Series, 350 Series, Small Business SF350, SF352, SG250, SG350

The Cisco MGBLH1 Transceiver MGE Small Form-Factor Pluggable (SFP) or mini Gigabit Interface Converter (mini-GBIC) is an easy-to-install module that provides a simple way to add fiber connectivity to Cisco 100, 200, 300, and 500 Series switches. The MGBLH1 transceiver is available for single-mode or multimode fiber-optic cabling and can support distances from 100 meters up to 40 kilometers.