In the video, a person is holding a power supply unit in their hand. The power supply unit has a fan on the front and a switch on the side. The person flips the switch on the side of the power supply unit, and the fan starts spinning. The person then flips the switch off, and the fan stops spinning. The power supply unit appears to be in good condition and is likely used for powering electronic devices. The person's hand is visible in the frame, and they are wearing a black shirt. The background is not clearly visible, but it appears to be an indoor setting.