The CS1308 KVM switch allows access and control up to 64 computers from a single console (keyboard, mouse, and monitor). As many as 8 additional switches can be cascaded (9 units in total) bringing the total number of connected computers to the maximum. The switch supports both USB and PS/2 connections for the console and computers. • One USB-PS/2 console controls 8 computers • Cascade up to 2 levels, which only works with USB KVM cable set connections, control up to 64 computers • Dual Interface - supports computers with PS/2 or USB keyboards and mice • Multiplatform support - Windows 2000/XP/Vista, Linux, Mac, and Sun • Video DynaSync™ - Exclusive ATEN technology eliminates boot-up display problems and optimizes resolution when switching between ports • Supports USB keyboards for PC, Mac and Sun • Auto PS/2 and USB interface detection • USB or PS/2 keyboard and mouse emulation - computers boot even when the console focus is elsewhere • Superior video quality - up to 2048 x 1536; DDC2B • Computer selection via front panel pushbuttons, hotkeys and multilingual on-screen display (OSD) menu • Two level password security - only authorized users view and control computers; up to four users and an administrator with a separate profile for each computer • Auto Scan feature for monitoring user-selected computers • Hot pluggable - add or remove computers without having to power down the switch • Buzzer on/off via hotkey and OSD • Firmware upgradeable • No software installation required • Designed for desktop or rack mount (19" system rack, 1U)