【4-Port KVM Switch】This KVM Switch 4 Port can control 4 PCs to share 1 monitor with 1 set of keyboard and mouse.You only need to gently press the switch button to switch between the 4 computers quickly (2-5s). It is worth noting that this product does not support hot key switching. | 【4 USB 2.0】 This HDMI KVM Switch has 4 USB 2.0 ports, which can share USB devices, such as scanners, USB printers, U disks, etc., and automatically recognize and match various display devices. At the same time, the product itself supports a variety of input devices or signal sources, such as PC, Laptop, PS4, etc. Compatible with a variety of computer systems. It can be widely used in education, finance, studio, office, software development and other fields. | 【Ultra HD 4K Visual Enjoyment]】It can support a resolution of up to 3840*2160@60Hz, and can also be backward compatible with 3840*2160@30Hz, 1920*1080P@60Hz, 1920*1080P@30Hz, etc., which will bring you ultra-high-definition visual senses~ Need to pay attention The device can support a maximum refresh rate of 60hz, please pay attention to the setting of this parameter when you use it~ | 【Adaptive EDID】This KVM Switch can adaptive to EDID, which makes image transmission more stable and more smoothly.This product is equipped with 2 HDMI cables, 2 USB-A to USB-B cables, and one USB-A to micro USB cable. When using this product, please connect all the cables; if your computer's power is low, Please pay attention to connect the power cord. | 【High-quality after-sales service】As a professional manufacturer, we have undergone rigorous testing before shipping each kit to confirm the quality and function of the product. It is very easy to use, just plug it in, no driver software is needed. Our products provide lifetime warranty service. If you have any questions or concerns about our products, please contact us directly through the order number. We will reply you within 12 hours~