iKKEGOL 4-Port Monitor VGA SVGA USB 2.0 KVM Switch w/4 Cables Mouse Keyboard Video KVM Switch Kit 4 port KVM switch is compact size design, easy portable. Supports Microsoft Intellimouse, Logitec NET mouse etc Supports DOS, Win3.X, Win 95/98/98SE/2000/ME/XP, WinNT, Linux, Netware, Unix Supports Hot Plug - add or remove connected PCs for might cause the keyboard error or keyboard is not detected at PC side. Hot Poug-add or remove connected PCs for maintenance without powering down the KVM switch or PCs.