Ключевые слова: background, boards, cable, charger, circuit, colorful, communication, computer, connect, connection, copy, cord, current, dangerous, data, device, digital, electric, electrical, electricity, energy, equipment, extension, flat, grounded, isolated, line, network, object, off, overload, plastic, plug, portable, power, protection, protector, safety, saving, socket, strip, switch, technology, top, usb, voltage, white, wire, yellow,