The 4x1 4K HDMI Switcher with Auto-Switching & Analog/Digital Audio De-Embed from Key Digital is a high-performance, four-input HDMI switcher that supports up to DCI 4K30v 12-bit 4:4:4 video, or up to DCI 4K60 8-bit video. It also accepts SD and HD video over HDMI as well as VESA resolutions such as VGA, SVGA, XGA, WXGA, SXGA, and UXGA, while supporting a maximum data transfer rate of 18 Gb/s. It supports HDR10 (High Dynamic Range), which allows the unit to pass signals with a greater range of luminance values than an SDR signal.