【kvm switch 4 computers】The hdmi kvm switch 4 port allows 4 computers or laptops to share 1 monitor and 4 USB 3.0 devices. You can control all 4 computers directly with a single set of mouse and keyboard. Switching between the 4 computers is easy using the panel buttons or an external remote. It's plug-and-play, streamlining your workspace and boosting office efficiency.(Please note: This device requires that each of your computers and monitors contain at least one HDMI port.) 【Ultra HD 8K@60Hz】The hdmi 2.1 kvm is equipped with a standard HDMI2.1 port, supporting resolutions up to 8K@60Hz and 4K@120Hz, with backward compatibility. It delivers exquisite, lifelike video effects on the screen. Please note: To achieve these resolutions, both your computer's graphics card and monitor must support 8K@60Hz or 4K@120Hz. Using a high-quality HDMI2.1 cable is recommended for smooth 【With 4 USB 3.0 Ports】The 4 port kvm is equipped with four standard USB 3.0 ports, allowing four computers to share four USB devices such as keyboards, mice, printers, and scanners. It supports high-speed data transfer of up to 5Gbps and is backward compatible with USB 2.0/1.1/1.0 devices.(Please note: This device does not support switching between Bluetooth mice and keyboards that do not have a USB receiver. When using the device, please make sure to connect the external power supply to provide stable current) 【Stable Transmission & Two switching modes】The kvm switch hdmi includes a 12V1A external power adapter for stable recognition of high-power USB devices with the KVM. You can switch between 4 computers using the infrared remote control or panel buttons, with LED lights indicating the active computer. Simple and convenient. (Please note: This device does not support hotkey switching) 【Wide Compatibility & Ease of Use】The hdmi kvm is plug and play, requiring no driver installation. It is widely compatible with Windows/Vista/XP/Mac OS/Linux and Unix systems, and supports multiple input devices. It is widely used in offices, classrooms, meeting rooms, home theaters, and gaming venues 【What you will Get】You will receive a 1*4 in 1 out KVM switcher, 4*USB 3.0 A to A cables, 1*12V1A external power supply, 1*IR cable, 1*remote control (excluding battery), and 1*user manual. If you have any questions or issues, please contact us immediately. Our professional customer service team is here to help 8K HDMI KVM Switch 4 Computers 1 Monitor. The remote control that comes with this product does not contain batteries. You will need to purchase your own AAA batteries for normal use.