Zagall 4x1 USB HDMI KVM Switch Share an HDTV or display, USB keyboard & mouse, and microphone between 4 USB/HDMI computers and devices Provides an additional USB 2.0 sharing port with over-current detection and protection Switch between devices via front push button or remote Supports 1080p with 36-bit Deep Color and PC's UXGA 1920x1200 resolutions, Supports Dolby True HD and DTS HD Master Audio formats HDMI v1.3 & HDCP compliant, Video bandwidth: up to 2.25Gb/s, Metal housing for better RF shielding