TESmart HDMI 4K Ultra HD 4x1 HDMI KVM Switch 3840x2160@60Hz 4:4:4 with 2 Pcs 5ft KVM Cables Supports USB 2.0 Device Control up to 4 Computers/Servers/DVR

*Available to use keyboard without any delay after switch input sources *Support resolution up to 3840x2160@60Hz 4:4:4 *Support USB 2.0 for printers, USB drives etc... *With EDID emulators in every input ports, keep PCs always have correct display information *Support front panel buttons, IR signals, keyboard hot keys to control KVM switch *Compatible with Unix/ Windows/ Debian/ Ubuntu/ Fedora/ Mac OS X/ Raspbian/ Ubuntu for Raspberry Pi and other Linux based system *Support analog L/R audio output