Linksyss ProConnect KVM Switches allow you to instantly toggle between four PS/2-equipped desktop or notebook PCs while using a single monitor, PS/2 keyboard, and PS/2 mouse. Switch between four PCs with the press of a button. Plug your note-book PC into the KVM Switch and control it from your desktop PCs monitor, keyboard, and mouse. Built to last and ready to run directly out of the box, Linksyss ProConnect Compact KVM Switches eliminate cable swapping while saving you desktop space and hundreds of dollars of hardware costs. Because they dont use software, the ProConnect Compact KVM Switches are compatible with all major desktop and note-book computers. They are the perfect choice for the home, the office, or anywhere else you manage multiple PCs.