The HDMI over Optical Fiber Extender can extend HDMI signal up to 4KUltraHD over 3300 feet/1000 meters (Single-mode cable) or 1000 feet/300 meters(Multi-mode cable) to an HDMI compatible display. It also supports bi-directional infrared control and RS-232 signal transmission. It can allowyouto easily control your DVD player at TV side or control your TV at the DVDplayer side when using this extender.