LZCT 4K High Speed HDMI Cable 50FT W/Ethernet HDMI 2.0 Support 4K@60Hz Dolby 7.1 Details Size: 50FT | Color: black and blue LZCT HIGH SPEED HDMI CABLE - 4K HDMI 2.0 READY - ETHERNET & AUDIO RETURN CHANNEL Don't be fooled by Copper Clad Aluminium (CCA) cables or Copper Clad Steel(CCS). LZCT HDMI cable is made of 100% pure oxygen-free bare copper and is triple-shielded for maximum performance and ultra low SNR. Each cable is manufactured with super quality materials to ensure our customers are provided with a beautiful, crisp video quality. The cable’s thick exterior protects against exterior forces, while internally, the cable is reinforced with quad-layer braided shielding and Mylar foil shielding that provides protection against RF and EM interference.