See detail @ Mediabridge Ultra Series - High Speed HDMI® Cable with Ethernet - Supports 3D, Audio Return Channel and Up To 4K Resolutionbr br Buy With Confidencebr Unlike most HDMI Sellers, Mediabridge Products is an Official HDMI Adopter Licensed by HDMI Licensing, LLC. See our certificate in product images section.br br Quality Constructionbr Mediabridge's Full Metal Jacket Connectors provide the pinnacle of protection from physical strain and electronic interference.br br HDMI combines both audio and video into one cable so it's all you need to connect your HDTV to your Blu-Ray Player, Xbox360, PS3, HD Cable Box, PC or any HD device with an HDMI output.