CSRET HDMI Switch 3 Port Auto Swithcher Hub with Pigtail Cable Supports 3D 1080P HD Audio for HD TV 3 In 1 Out Intelligent Function: 3 HDMI in and 1 HDMI out. Smart, automatic operation.Also, it has the key-press-switching function/Automatically detect the current and separate power supply HDMI Switch Cable: Comes with 1 fixed standard HDMI 1.4 pigtail cable, High-quality 24k gold plated mental connector, and aluminum foil shielded technical process, which greatly reduces the signal interference, ensures superior signal transfer Plug and Play: No extra power / installation software required. . Make sure the 3 sources connect (Make sure all sources have to be on to operate correctly)or it maybe won't work since insufficient power Support 3D and HD resolutions up to 1080p, HD Audio and HDCP Compliant; Come back to the default input 1 status when reset Support 12-bit Deep Color; sharp HDTV resolutions up to 1080p and computer resolutions up to 1920 x 1200