The AT-HD4-V41 HDMI 4x1 Switcher with automatic switching has a high-
speed digital performance connection that routes four inputs to a video
display with no signal degradation. It has a built-in pass-through for
Audio Returning Channel (ARC) and HDMI Ethernet Channel via a single
HDMI cable reducing workspace. It allows full 3D pass-through with 100%
image replica. Ideally use in houses, multimedia systems, and
insufficient display input options.