The image shows a close-up of a green printed circuit board (PCB) with three small electronic components attached to it. On the left side of the board, there is a black rectangular component with a white knob on top, which appears to be a power supply unit. Next to it, there are two smaller rectangular components, one with a black cover and the other with a gold cover. The black cover has a small white knob in the center, which is likely used to control the power supply. The gold cover has two small capacitors on either side, which are likely used for power supply purposes. There are also two red and black wires connected to the components, which may be used to connect them to other electronic components. The background of the image is a metallic surface.