The 4-Port USB KVM Switch lets you manage four PC's with just one set of keyboard, monitor, and mouse. Switch between 4 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