?Package Contents & Warranty? Package comes with 1pcs 4K KVM switch, 2pack HDMI cable, 2pack USB 3.0 cable, 1pcs User manual. YINNCEEN provides our customers 12 months worry-free warranty for this two computers one monitor switch, If any you have any question, please feel free to contact us, we will turn to you as soon as possible. ?Great Compatibility & Wide Application? this 2 computers 1 monitor switch driver-free for Windows 10/8/8.1/7/Vista/XP and Mac OS, Linux, and Chrome OS, supports many kinds of input devices or signal sources switch,such as PS4 ,PS4 Pro, PS3, Xbox One, TV Box, PC, Laptop, Nintendo Switch,most of the HDMI capable devices. It is widely applied for study, office, multimedia Teaching, meeting room gaming room, home theater, research test etc. ?Ultra HD 4K@60Hz Visual Feast?This HDMI KVM switch supporting resolution 4K@60Hz,make image display more exquisite and realistic,color is more bright and moving,really give a feast for your eyes. ?2 Computers One Monitor Switch?This HDMI switch makes it possible for you to control 2 computer with only one set of controls(Monitor, Mouse, Keyboard and Printer). You can easily switch between two displays. Make your work desktop more tidy and orderly, and make your work more efficient. ?USB 3.0 HDMI Switch?The USB 3.0 port of this KVM switch supports ultra-fast USB 3.0 data transfer rates of up to 5Gb/s (10 times faster than USB 2.0), provides high-bandwidth support, allows you to enjoy efficient and smooth data transmission between the computer and external devices. (backward compatible with USB 2.0 and USB 1.1 devices.).