This device distributes a HDMI signal to 4 devices such as 4 televisions. It is ideal for bars or public establishments where they need to spread what is being broadcast by a satellite receiver at the same time on 4 TV. The box is metal its HDMI 1.3 version supports a maximum resolution of 1080P 3D HDCP 1.0 / 1.1 / 1.2. It includes power adapter. Support input up to 15meters 26AWG HDMI standard cable length output up to 25meters