Compatibility?This USB 3.0 KVM switch has excellent compatibility for Windows 10/8/8.1/7/Vista/XP and Mac OS, Linux and Chrome OS. HDMI KVM supports most HDMI-enabled devices or source switching, such as PS5, PS4, TV Box, PC, Laptop. Widely used in office, teaching, conference room, home theater, games, etc. About the power switch and wired controller?The power switch is designed to avoid multiple unplugging and plugging, and it is very convenient to power off with one key. There is also a round double-sided adhesive in the bag of the wired controller, which is used to fix the wired controller panel on the desktop or keyboard. Package Included?1*USB 3.0 KVM Switch, 4*USB 3.0 Cables A to A (*1.5M). 1*HDMI2.0 Cable(1.5M), 1*Wired Remote Control, 1*User Manual.1*Power Cable. ?Case and Solution: If the laptop is directly connected to the monitor, it can reach 4K@60Hz, but after connecting the KVM, it cannot reach 4K@60Hz. ✓✓The solution is: Step 1, press "Window+P" on the keyboard at the same time, select "Extended Mode" or "Second Screen Only". Step 2. On the computer desktop, click the right mouse button ? Display Settings ? Advanced Display Settings ? select Display 2 ( Display 2 is the external display) ? Select the refresh rate and resolution. Two Switching Modes?When using KVM USB 3.0 switch, so that can switch between 4 computers by wired remote control (included) or switch by the button on the machine. the green LED light indicates the corresponding computer. There are numbers on the panel of the wired controller, press 1 to switch to the PC1. EDID Adaptive?USB3.0 HDMI KVM switch can simulate the EDID of the monitor, store the resolution and refresh rate of the display.✓✓✓✓How EDID works:?Lock screen,when you switch from PC1 to PC2, and then switch back to PC1 from PC2, the windows of PC1 will keep the order before switching and will not be disrupted. ? Automatically identifies and applies the best resolution to the monitor. KVM Switch with 4 USB 3.0 Ports?HDMI KVM switch with 4 USB 3.0 ports to recognize wireless/wire keyboards, mouse, printers, scanners and other USB devices. Supports Super speed USB 3.0 data transfer with data transfer speeds up to 5Gbps and is backward compatible with USB 2.0 and USB 1.1 devices.?Note: Each computer needs to be connected to the KVM with either a USB 3.0 cable, otherwise the keyboard and mouse will not be recognized. Ultra HD 4K@60Hz 2K@120Hz?USB 3.0 HDMI KVM switch supports 4K@60Hz 2K@120Hz, which makes the image display more delicate and vivid, the image is very clear, and the color is more vivid and moving. It also supports 4K@30Hz, 3D and 1080P or lower resolution, please make sure the computers and monitor support 4K resolution and use HDMI 2.0 cables. ?Applicable monitor types: regular monitors, widescreen monitors, super widescreen monitors. USB3.0 HDMI KVM Switch 4 in 1 out?This USB 3.0 KVM switch allows to control 4 computers with only 1 set of monitor mouse and keyboard. Making easily switch between 4 computers on 1 monitor and share 4 USB 3.0 devices.