3-Port HDMI Switch 3 HDMI in & 1 HDMI out. You can hook up 3 devices to it (ps 3/fire TV/ Blu-players) & 1 way out (TV hdmi port or Monitor). A great solution to have multiple game systems or other sources attached to HDMI port easily. Auto-switch & Manual-switch When one device is active, the switch will automatically detect & display it. With a select switch, it can be switched to the device you want to connect to easily. Three blue LED lights numbered 1, 2, & 3 will turn on to show it is connecting. High Definition HDTV resolution up to 1080P (1920x 1200) & support 3D. Audio Formats: LPCM, DOLBY AC3, DTS7.1, Direct Stream Digital. Support 3D data transfer, support high resolution: 480P, 576P, 720P, 1080i, 1080P, meanwhile compatible with V1.2, V1.1, V1.0 (NOT support 4K, roku 2 or V2.0), Plug & play, no drive & power needed