External Gigabit Media Convertor, Single Mode SC Fiber,
Transmit rate: Gigabit (10/100/1000Base-T to 1000Base-SX/LX). Material: aluminium alloy. Optical interface: SC; Model: HTB-GS-03. Transmit distance: 20km; Emission Wavelength: 1310nm. We'd like to settle any problem in a friendly manner.