Convenient Switching modes and Wide Compatibility: 1. Toggle selection on front panel; 2. Wired remote switch. Compatible with a variety of computer systems,such as Windows, Linux, Mac, Unix, Ubuntu, Raspberry and most other major OS; also supports HDMI devices without USB signal input like DVR, NVR etc.Tips: If you have any questions about the product, please contact us. With 3 USB 2.0 Ports : Plug and play with no driver needed, with extra USB 2.0 port for sharing USB printers, scanners ,keyboard mouse. The upgraded design hides the messy cables at the back, leaving a USB 2.0 port on the front for inserting a USB flash drive.Unique design makes the desktop more tidy, Say goodbye to cluttered cables. KVM Switch Dual Monitor 4k 60hz: Our KVM supporting high resolution max up to 4K@60Hz, and also supports 3D and 1080P@60Hz or other lower resolution (Downward Compatible). Note: Only when both your computer Graphics card and monitor support 4K@60Hz then you can get 4K@60Hz effect, so if you want the max resolution you have to check your devices first. Also supports separate audio and microphone output. Support Simulation EDID: This KVM dual monitor switch can simulate the EDID of the display, store the resolution and refresh rate of the display, it comes with EDID emulators in each input port, keep PCs always having correct display information. Without EDID, your windows may move around when switching. No longer have to sit and wait for the windows to adjust. Dual Monitor Switch for 2 Computers: This dual monitor KVM Switch is for you to control them using one set of keyboard, mouse and single or dual monitors to make your work space tidy and efficient, also a premium choice for working from home. Only when your computer supports dual display or multi display, you can use this KVM to achieve 2 PC to share 2 monitors. (Extended, mirrored or spliced display modes depend on your computer's graphics card).