Computer peripheral apparatus and equipment allowing a plurality of users to independently access and control a plurality of computers or servers from a plurality of keyboards, monitors and mice; extension and expansion apparatus and cables for linking computers with keyboards, monitors and mice; computer hardware and computer peripherals for transmitting keyboard, monitor, mouse, audio and serial data signals over a distance; computer peripheral apparatus and equipment; computer networking apparatus and equipment, namely, computer network switches; computer peripherals, namely, interconnection equipment; data switching apparatus; power supply adaptors for use with portable electronic devices; electric cables; racks for mounting computer equipment; KVM (keyboard video mouse) switch; mounting racks for computer hardware, namely, KVM Rack Tray equipped with monitor; electronic switchers for audio and video signals; electrical and electronic switching and control equipment; electronic apparatus and equipment for audio and video distribution; apparatus for recording, transmission or reproduction of sound or images; integrated circuits, semiconductor chips, circuit board assemblies, electronic components for computers; computer peripheral apparatus and equipment and software for remote access, control and viewing of computers or servers