*  Four-Console 16 port Matrix KVM switch, allow 4 users to control 4 different computers/servers simultaneously *  Support combo interface for connecting to computer ports conveniently *  Support full VGA interface on all computer ports for reducing KVM cable bulk *  Support one local console and one VGA remote console *  Two optional modules of remote access consoles (CAT5 or IP) *  With CAT5 KVM Switch, we can locate computer host up to 330 feet (100 meters) away from KVM switch with superior auto-adjust RGB signals capability *  With remote CAT5 module, we can locate CAT5 console up to 1000 feet (300 meters) away from the KVM switch with superior auto-adjust RGB signals capability *  Support Windows, DOS, Netware, Unix, Linux *  Support iMAC, Power MAC and Sun Micro Systems with USB port *  No Software Required --- easy computer selection via On Screen Display (OSD) Menu, Push Buttons, HotKeys *  Provide various Hotkey (Scroll-Lock/ Caps-Lock/ Num-Lock/ Alt/ Ctrl/ Win) for switching computer port and other control functions, so Hotkey function can be used in various types of  keyboards, and to avoid Hotkey duplicate problem *  Support two levels of password security protections *  Provide ACL (Access Control List) security function, store up to 8 independent ACLs of controllable computer lists *  Hot Plug – add or remove connected computer without powering off the KVM switch or computer *  Very High Video Quality *  Keyboard status restored when switching computers * Support Daisy Chain function with both Bus (8-layer) and Tree (2-layer) topologies