Resolution: 4 way hdmi splitter supports resolution 4Kx2K, Full HD 1080P, 3D, deep color 8/10/12 bit; Supported DTS-HD, Dolby-trueHD, DTS, Dolby-AC3, DSD etc; Plug and play, no software required. Please note that the input/output device must support 4K in order to display 4K resolution.