[2 HDMI+ DisplayPort 3 Monitor 4 PCs] This KVM perfect for hooking up 4 desktops or laptops to share one set of keyboard, mouse and 3 monitors for extended, mirrored display. It requires every Laptop/PC support 3 screen or above display functions and must support extended display. [Ultra HD 8K@60Hz] DisplayPort: support resolution up to 8K@30Hz/4K@144Hz. HDMI Port: support resolution up to 8K@60Hz/4K@60Hz/2K@60Hz and backward compatible with lower resolution. [3 USB 3.0 & Audio & Microphone Output] with 3 integrated USB 3.0 ports which can recognize keyboard, mouse, printer and other USB devices. Supports ultra-fast USB 3.0 data transfer up to 5Gbps, backward compatible with USB 2.0/1.1 devices. Also supports separate audio and microphone output. [Convenient Switching modes and Wide Compatibility] You can press the button on the panel or use the wired remote controller to switch between 4 PCs. Compatible with Windows, Linux, Mac, Unix, Ubuntu, Raspberry and most other major OS.