Ran out of HDMI ports on your HDTV/monitor/projector? Want to reduce the mess of cables connected to it? 3x1 HDMI Intelligent Switch with Pigtail Support will take care of these problems. It has 3 HDMI input sources to provide plug-and-forget auto sensing capabilities that automatically switch inputs when a signal is detected. A button to manually switch between the 3 sources is also built-in. HDMI Supported Features Up to 1080p, HDCP 1.0/1.1, 12-bit Deep Color, 3D, and uncompressed/compressed audio formats are some of the newer HDMI features supported on this switch. HDMI Switch Features and Specifications: • 3 HDMI Inputs,1 HDMI Output • Support Resolution: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p • Supported Audio Formats: LPCM, DOLBY AC3, DTS7.1, Direct Stream Digital • Supports 12-bit Deep color per channel, maximum of 36 bits • Maximum Single Link Video Range: 1920x1080p • Supports 2.5Gbps/250MHz per channel, maximum bandwidth per display is 7.5Gbps • Supports compressed audio such as DTS Digital, Dolby Digital, DTS-HS and Dolby TrueHD • Maintains high resolution video - beautiful, sharp HDTV resolutions up to 1080p, and computer resolutions up to 1920 x 1200 are easily achieved. • 24k gold-plated connector How it works? 1.There are 1, 2 & 3 outlets with lights showing which device is connected and even a little button so you can audio switch from one outlet to another. 2.As you switch between devices, the light moves to show which device you're connected to hdmi cable. 3.If you don't have a third device, the light for device 3 will not light up. 4. the product is designed to intelligently switch to the correct device.