Our boosted 50m HDMI cables are made from Oxygen Free Copper Cable (OFC) providing a high quality connection between devices. These long cables are active boosted to achieve HDMI distribution up to 50 meters (depending on model bought). Supports resolutions of 1080P and 4k x 2k for a high quality picture coupled together with 3D support Audio Return Channel (ARC) and Ethernet channel you can enjoy high quality movies with sound via your home theatre system while having access to the internet. A USB connector is fitted for extra power and not needed under normal use. Please note that due to the cable being actively boosted it must be installed correctly with the input/output labelling (the output being connected to TV/projector etc). Specification HDMI High Speed with Ethernet Cable Actively boosted OFC Copper Cable Double shielded HDMI Ethernet Channel Audio Return Channel 3D over HDMI 4k x 2k Resolution Support Expanded Support for Colour Spaces USB connection for extra power 50 Meter