... /20KM for option HDMI+IR over fiber optic transmitter receiver, use simplex or duplex FC/SC fiber cable, max extension distance can reach ... , Support HDMI1.34, Max extension distance 2KM (MM fiber cable)/20KM (SM fiber cable)5, DC5V 3A power adaptorProduct speficitaion: Video I ... temperature-40-80°CHumidity0-95% (non-condensing) HDMI/IR over fiber optic