The MFELX1 is an easy-to-install Mini-GBIC (SFP) transceiver module that provides a simple way to add 100 Base-LX functionality to your Linksys switch. The module operates at a wavelength of 1310 nanometer and supports single-mode fiber optic cabling. In a typical operating environment, it can achieve distances up to 10 km depending on the total attenuation in the fiber plant.100 Base-LX is mainly used in metro area networks (MAN) or in large campus networks needing 100 Mbps connectivity between sites. The MFELX1 can be used with wide variety Linksys switches to create solutions that meet the needs for a broad range of customers.