•This HDMI KVM Switch allows you to control 2 computers with only one set of controls (Monitor, Mouse, Keyboard, and Printer) •You can easily switch between two displays. Makes your work and life much more simple and more efficient. LED light color(Green or Blue) indicating the active computer •This HDMI USB KVM switch supports resolution 4K@60Hz, making the image display more exquisite and realistic, and the color is bright and more moving, which really gives a feast for your eyes. Of course, it also supports 4K@30Hz, 3D, and 1080P or lower resolution •KVM supports many kinds of input devices or signal sources switch, such as most of the HDMI capable devices •It is widely applied for Enterprise, Office, Multimedia Teaching, Meeting Room Gaming Rooms, Home Theater, Research Tests, etc. •This KVM switch works with great compatibility, driver-free for Win /Vista/XP and Mac OS, Linux, and Chrome OS, simply plug and play, No external power required. Easily switch between 2 displays with a single click on the button Specification: •Input: 2 x USB 2.0 A+2x HDMI female for PC. •Output: 2 x USB 2.0 A+1x HDMI female for USB peripheral devices. Note: PC1 is the default input port and you can switch to PC2 by the manual button. Package included: •1 x KVM Switcher •Other items not included