?Ultra HD 4k Visual Enjoyment?This dual monitor switch can support resolution up to 3840x2160@60Hz, downward compatible with lower resolutions. Thanks for purchg our USB 3.0 KVM switch, we provide one year guarantee, please feel free to contact with us if you need techical support help during use. ?Support 2 Mode Switching?Support physical button and wired control. Come with a wired control, support control device within 1.5 meters. Noted: this kvm usb 3.0 switcher not support keyboard hot key switching way. ? With 4 USB 3.0 USB Ports?This 2 in 2 out KVM USB 3.0 switch with 4 USB 3.0 port for sharing mouse, keyboard, USB printers, scanners, etc,. USB 3.0 transmission is more stable and faster, if you are looking for a USB 3.0 version KVM switch this will be a good choice!. ?With EDID Emulator Function?This dual monitor KVM switch with EDID emulators in each input port, keep computers always having correct display information when switch back. compatible with a variety of computer systems, such as Windows10 / 8.1 / 8 / 7 / XP / Vista, Mac OS, Linux, Chrome OS. ?Dual Monitor KVM USB 3.0 Switch?This Dual Monitor HDMI KVM switch can control 2 computers to share 2 monitors by 1 set of USB keyboard & mouse. When in copy mode the main screen can be copied to the secondary screen. When in extend mode, the window from main screen can be dragged to second screen.