`- 99.99 Oxygen Free Copper conductors with gold plating.- Copper Foil shielding for rejection of EMI and RFI.- Designed to distribute high-quality video audio and other communication needs with contemporary styling for commercial or residential applications.- HDMI (High Definition Multimedia Interface) connectors are ideal for high-definition video and audio devices.- Rugged and durable construction.- Compatible with all ICC classic and decorex style faceplates and inserts.- HDMI certified and supporting