20km 3G-SDI Fiber Optic Extender - 20km transmission distance Single Mode or 300m Multi Mode - Support 3Gbit Level A and Level B (all formats) - SFP/ LC Fiber transmitter & receiver - SDI equalization and re-clocking - 3G-SDI input & loopout on transmitter, Dual 3G-SDI outputs on receiver - USB power supply