One USB console controls 4 computers; Cascadable up to 3 levels - provides up to 64 computers; Dual InterfaCEsupports computers with PS/2 or USB keyboards and mice; Multiplatform support - compatible with all operation platforms PC (Windows, Linux and most others), Mac and Sun; Auto PS/2 and USB interface detection; Buzzer On/Off via hotkey and OSD; Computer selection via front panel pushbuttons, hotkeys and OSD; Superior video quality - up to 2048 x 1536 -- DDC2B; Firmware upgradable; With speaker and microphone support; ATEN USB ASIC inside; Available in silver and black; Rack mountable in 19" system rack; Multiplatform support -- Windows 2000/XP/Vista, Linux, Mac, Unix, Sun and FreeBSD; For more information about KVMs which can connect to CS1754, see Compatible KVM Table.