1. 4 In 1 Out KVM Switch: one set of keyboard, mouse and 1 monitor controls 4 VGA-interface computers/laptops. With audio and microphone output, USB 2.0 Hub, 4 kit cables. 2. Computer Switch resolution compatible 2048x1536@60Hz, 2048x1280@60Hz, 2048x1080@60Hz, 1920x1200@60Hz, 1920x1080@60Hz, etc. 3. KVM Switch with USB support four switching mode: button switching, mouse switching, keyboard hot-key switching and wire remote push button switching(tips: button switching and wire remote push button switching can't be using together). 4. Drive-free for Windows 10/7/2000/XP/Vista, Linux, Mac, Debian, Ubuntu, Fedora, Raspbian and Ubuntu. 5. Support DDC, auto detection, auto scan, waking up, with memory function in case of power-down. 12