Cisco GLC-FE-100LX-RGD Compatible SFP TAA Compliant Transceiver, SFP (mini-GBIC) transceiver module, Form Factor Plug-in module, Connectivity Technology Wired, Optical Wave Length 1310 nm, Interfaces 1 x Ethernet 100Base-LX - LC single-mode x 2. This SFP transceiver provides 100Base-LX throughput over single-mode fiber. It is also capable of withstanding rugged environments, and is easy to install.