The video shows a person assembling a computer. The person is seen placing a motherboard into a computer case and then connecting wires to it. The motherboard is black and has a green fan on it. The person's hands are visible, and they are wearing a white shirt. The computer case is gray and has several slots and compartments. The wires are multicolored and are connected to the motherboard. The person's actions are deliberate and careful as they ensure that the connections are secure.