The ALF-WU4K HUB HDMI 2.0 is a 4x1 Switcher. The switcher features four HDMI video inputs and one HDMI output. It supports HDMI video resolution up to 4Kx2K at 60Hz 4:4:4 HDR 10. The switcher provides one stereo audio output for audio de-embedding and provides four Type-B USB ports and three type-A USB ports for KVM management, the four HDMI computers can be controlled via one keyboard, one mouse and one monitor. In addition, the switcher features four GR ports to connect ALF-TG table grommets for source selection and black screen settings. The switcher can also be controlled via RS232 and front panel buttons.