SIIG 4K60Hz Quad-View HDMI Mouse Roaming KVM Processor - Allows you to control 4 HDMI computers using one keyboard and mouse, 2 HDMI 4K@60, 2 USB-A 3.2 Gen 1 ports, 2 USB 1.1 ports, Microphone input, - CE-KV0J11-S1

Allow you to control four 4K@60Hz HDMI computers via one set of keyboard and mouse
Advanced dual-head HDMI KVM switch to offer 4096 x 2160@60Hz and also support mouse roaming between four Windows PC, Mac, or laptop
Supports 5 Display Modes: One View Mode, Dual View Mode, Quad View Mode 1 to 3
Supports seamless switching in single view mode and mouse roaming function
Built-in 2-port USB3.2 Gen 1 5Gbps Type-A HUB to share USB peripheral devices and 2-port USB1.1 Type-A for keyboard and mouse
Supports audio extraction via 3.5mm stereo output from the selected HDMI input
Supports audio lock function, easily lock the stereo audio to the selected source device, which can avoid switching to stereo audio when switching to another source devices
Supports IR remote, keyboard hot-keys, Web, RS232 and front push button to switch computers
Firmware upgradable for support new features and technology enhancements
Supports independent HID keyboard & mouse ports
Supports resize, position, zoom & pan and blend output video
Supports pure unaltered uncompressed 7.1ch digital HDMI
Supports background picture & logo update
Plug and Play without any driver needed