The kh2508a kvm switch is a control unit that allows it administrators to access and control multiple computers from two ps2 or usb kvm consoles one bus operators working at up to two consoles can independently and simultaneously take control of up to 8 computers by daisy chaining up to 31 additional switches as many as 256 computers can be controlled from the original kvm consoles this switch has been designed with unique and powerful features that enable administrators to manage thei