TRENDnet Intelligent 1000Base-T to 1000Base-LX Dual Wavelength Single Mode SC Fiber Converter (10km/6.2miles), TFC-1000S10D3 Must use with TFC-1000S10D5 SC-type dual-wavelength single-mode fiber port connects over distances of up to 10km(6.2miles) 1000Base-T Gigabit copper port supports Full-Duplex mode Supports port level SNMP management Functions as a stand alone converter or with the TFC-1600 fiber chassis 3 Year TRENDnet Manufacturers Warranty