By Bestbuy.com

Transition Networks - TN-GLC-SX-MMD SFP (mini-GBIC) Transceiver Module - 1 x LC Duplex 1000Base-SX Network - For Data Networking, Optical Netw - Possibly Black

The Transition Networks TN-GLC-SX-MMD small form factor pluggable (SFP) transceiver modules are designed to install in any SFP port allowing for 1000Base-T, 1000Base-SX or 1000Base-LX interfaces to the network through the SFP connector.