A peripheral device required to service each machine.
Keyboard wired and wireless wi-fi for computers and minicomputers.
Mouse wired and wireless to computers and minicomputers.
Gamepads, joysticks and other controllers, wired and wireless for computers and minicomputers.
Card for remote communications wi-fi and Bluetooth connected to the USB connector.
USB hubs, active and passive.
Cables with USB connectors, e.g., USB - microUSB USB - miniUSB, etc.
Network devices such as routers, switches, Ethernet cables type patch cord, and more.
The UPSs provide energy, with the disappearance of the current in the network.
High-quality loudspeakers for connection with PCs and minicomputers, eg Raspberry Pi.