HH5 About this product [4-Port KVM Switch Dual Monitor] This DisplayPort dual monitor KVM switch allows you to control 4 computers or laptops and 2 extended or mirrored monitors simultaneously with a wired or wireless keyboard and mouse set. [Dual Monitor Extended 4K@60Hz] Supports standard DP 1.2 protocol, maximum resolution of 3840x2160@60Hz, and is backward compatible. The KVM dual display switch requires two DisplayPort ports to connect from each computer to the KVM switch, so please note the necessary adapters before ordering. If both the monitor and source support 4K@60Hz, you can experience 4K with this unit. Automatic adaptive EDID allows it to adapt to various complex application environments. The dual monitor switcher has 4 USB 2.0 ports, allowing you to share USB peripherals such as keyboards, mice, printers, scanners, webcams, and hard disks among 4 or more computers. It can automatically recognize and match various display devices. Compatible with various computer systems such as Windows 10/7/2000/XP/Vista, Linux, Unix, Mac, Ubuntu, and Fedora. Plug and play, no external power supply required. LEDs indicate the active computer. An external power adapter is included, so you don't have to worry about running out of power. You can only achieve extended or duplicate mode to share 2 monitors with 4 computers using this product if your computer supports dual monitors or multi-monitors. If your computer only supports a single monitor, you cannot achieve dual monitor functionality with this product. The package includes: Dual monitor KVM switch x 1, power adapter x 1, wired remote switch x 1, USB Type-A to B cable x 4, user manual x 1.