Portta HDMI Mini Switch/Switcher 3 Port 3x1 v1.4 for HDTV 1080p Full HD 4k support Key-Press-Switching Multifunctional on switching ; intelligent or mechanical Support HDMI1.4b Support high Definition resolution 4KX2Kat30,1080p and 3D. Support 300MHz/3.0Gbps per channel bandwidth. CEC Pass-through Support 12bit per channel (36bit all channel) deep color. Support uncompressed audio such as LPCM. Support compressed audio such as DTS Digital, Dolby Digital including DTS-HD and Dolby True HD.