The 4-Port Usb Kvm Switch Lets You Manage Four Pc S With Just One Set Of Keyboard, Monitor, And Mouse. Switch Between Two Pc S With A Simple Press Of A Button! Separate Sets Of Kvm Cables Are Included With The Kvm Switch, So Users Can Start Controlling 4 Pc S Instantly. The Kvm Cables Also Provide Power To The Kvm Switch, Eliminating The Need For A Power Adapter. Hot Key Operations Provide Immediate Access To Features Such As Computer Switching, And Auto-Scanning. With Its Hot-Plug, And Audible Feedback, The 4-Port Usb Kvm Switch Is The Perfect Choice For Managing Multiple Pc S.