StarTech.com 4K HDMI over Fiber Extender Kit, 4K 60Hz up to 3300ft/1km (Single Mode) or 1000ft/300m (Multimode) LC Fiber Optic, HDR/HDCP, Audio/RS232/IR Extender, HDMI Video Extender - Transmitter and Receiver Kit (ST121HD20FXA2) - video/ljud/infrarröd/nätverksförlängare - HDMI