Gefen's Mono-LOK series of cables are perfect for highly demanding installations. It provides a secure and fixed way of connecting with the source and display. The Gefen Mono-LOK High-Speed HDMI Cables with Ethernet support all of the latest-generation HDMI features, including an Ethernet connection through the HDMI cable, Audio Return Channel, 3DTV, and up to 4K resolution.Hex hardware is included with our Mono-LOK products for conversion of compatible HDMI connectors.HDTV Resolutions Supported: 480i, 480p, 720p, 1080i, 1080p, 2K, 4K.Computer Resolutions Supported: up to 4096 x 2160.- Supports HDMI Ethernet Channel (HEC), which consolidates video, audio, and data streams into a single HDMI cable, combining the unmatched signal quality and convenience of HDMI connectivity with the power and flexibility of home entertainment networking. It incorporates a dedicated data channel into the HDMI link, enabling high-speed, bi-directional networking at up to 100 Mb/sec.- Supports the HDMI Audio Return Channel (ARC), which enables a TV, via a single HDMI cable, to send audio upstream to an A/V receiver or surround audio controller, increasing user flexibility and eliminating the need for any separate S/PDIF audio connection.- Supports HD resolutions up to 4K (4096 x 2160) in sharp, vivid Deep Color with up to 8 channels of embedded digital audio- Tested and certified up to HDMI Category 2 (340 MHz)- High quality 28AWG copper conductors to deliver a pristine signal- Multi-layer shielding protects signal from electromagnetic interference (EMI)- Proprietary Mono-LOK technology provides a secure HDMI connection