These adaptors allow you to send an hdmi signal over standard multimode fibre cable. Cheaply obtained at various lengths. This cable can operate up to 300M at 4K resolution. Supplied are the converters including usb cables to power each end. They will run from hdmi power but some devices don’t supply enough current. These are a spare from an install and have not been used so are in brand new condition. They have been tested prior to sale. This is the only use they have had.
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