The 4-Port USB KVM Switch lets you manage four PCs with just one set of keyboard. monitor. and mouse. Switch between four PCs with a simple press of a button! Separate sets of KVM cables are included with the KVM Switch. so users can start controlling 4 PCs 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 PCs.-4-Port USB KVM Switch.-USB Keyboard/Mouse emulation with 4 sets of detachable KVM Cables.-Supports Microsoft IntelliMouse. Optical Mouse. Logitech NetMouse and more.-Compliant with Windows 98SE/ME/2000/XP/2003 Server. Linux. and Mac OS.-High Video Quality. up to 2048 x 1536 VGA resolution.-Multi-Platform support for PCs. Macintosh G3/G4. iMac and Mac Mini.-Auto-Scan and LED display for PCs monitoring.-Hot-Key.