Hubs & Switches descriptions： We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. 4 Port Hdmi Kvm Switch, 4k Usb Hdmi Kvm Switcher. Features: Standard 104-key Wired USB Keyboard, Standard 2 or 3 Button Wired USB Mouse Are Recommended. Wireless Mouse&keyboards and Mechanic Mouse and Keyboards Are Not Supported 2-way to Control the USB&video Source:Button Control and Extension Switch Wire. Hot-key Control on Keyboard is Not Supported. Using Only 1 Set of Keyboard, Mouse and Monitor to Control 4 PCs Support Windows/Mac OS Support Hot Plug, Connect or Disconnect Devices to the KVM Switch Without Turning off Devices Support Resolution Up to 3840*2160@60Hz Supports Button Control or the Included Extension Switch Wire With Extra Standard USB Port, It is Possible to Connect Bar Code Scanner, USB Hard Drive or Other USB Devices to KVM Just As You Have Plug These Devices Directly to Computer Specifications Model Number: HKVM41 Monitor Connections: 1 Ports Interface Type: HDMI Resolution: 3840 X 2400 Computer Connections: 4 Ports Package Included: 4K KVM Switcher X1 USB Cable X4 USB DC Power Cable X1 Extension Wire Control CableX1. Products number : SOMONO99350