SP218C 8-PORT KVM Switch, USB & PS2 dual interface. - OSD Menu, offering more intuitive and convenient control - Support USB and PS/2 dual interface on both Console and PC Side - Port-capacity scalable up to 256 of computers via daisy-chaining multiple KVM Switches - 19" Rack mountable 8-port Cascadable Rackmount USB PS/2 KVM switch USB and PS/2 interfaces available on both console and PC sides High VGA resolution 2048 x 1536 Cascadable up to 8 levels using daisy-chain cable Port capacity scalable up to 120 PCs with multiple units in daisy-chain configuration USB and PS/2 interfaces available on both console and PC sides Support OSD, front-panel push buttons and keyboard hotkeys controls Support for DOS, Windows 95/98/SE/ME/2000/XP, Linux, MacOS, etc. Support Microsoft IntelliMouse(R), IntelliMouse Explorer(R), Logitech NetMouse(R) and other compatibles Autoscan mode for quick browsing of all connected computers Autoscan delay time 5 ~ 100 seconds Password protection Plug-and-play for PnP OS, no Windows driver software needed Hot-plugging PCs for maintenance without powering down the KVM Switch or PCs 19 inches rack mount design with metal enclosure for best shielding and protection