ViewHD AB Bi-Directional 3x1 | 1x3 HDMI Switch Support 1080P | 3D | 4K / Ultra HD | VHD-3X1AB 3x1: One of the 3 HDMI sources (DVD Player or PS3 or computer) to one HDMI Monitor or TV 1x3: One HDMI source (DVD Player or PS3 or computer) to one of the three HDMI Monitors or TVs; it is NOT a 1x3 splitter. Power free, use the power from the connected HDMI source unit HDCP and EDID pass through; Support 3D 1080P and HDMI v1.4 Ultra HD / 4K up to 30Hz Output up to 5metres AWG26 cable length @ 4K resolution of HDMI v1.4 signal