One PS/2 console controls 8 computers; Daisy chain up to 31 additional units - Control up to 256 computers from a single console; Firmware upgrades to all the chained KVM switches at the same time via the daisy chain cable; Buzzer ON/OFF via hotkey and OSD; Broadcast Mode - Operations simultaneously performed on all selected computers, software installation and upgrading, system wide shutdown....etc.; Auto-sensing of station's position on daisy chained installations - no need for manual DIP switch setting - front panel LED indicates station's position; Computer selection via hotkeys and OSD; Superior video quality- up to 2048 x 1536 -- DDC2B; Rack mountable in 19" system rack; Multiplatform support - Windows 2000/XP/Vista, Linux and FreeBSD; For more information about KVMs which can connect to ACS1216A, see Compatible KVM Table.