The 4-Port USB KVM Switch with Audio lets you manage 4 computers with just one set of keyboard monitor mouse and a set of speakers/Microphone. The device comes with 4 sets of USB KVM and Audio cables no additional equipment required. Its compact size makes it ideal for home and business environment.-Use one keyboard monitor and mouse to control four computers.-4-port USB KVM Switch with 1 set of Microphone/Speaker port.-4 sets of VGA and 4 sets of Audio & Microphone Cables.-Supports Microsoft IntelliMouse Optical Mouse Logitech Net Mouse and more.-Supports super High Video Quality up to 2048 x 1536 VGA resolution.-Supports Windows 98(SE)/ME/2000/XP/2003 Server Linux and Mac OS.-Multi-Platform supports for PCs Macintosh G3/G4 iMac and Mac Mini.-Auto-Scan & LED display for PCs monitoring.-Hot-Key push button and Windows-based client switching software.-User definable hot-key (Windows Only).-Plug & Play and Hot-Pluggable.-USB Interface Power method.-2-year limited warranty.