The image shows a black NOMA power supply unit mounted on a white brick wall. The unit has a black cord attached to it with a white plug. The cord is coiled up and appears to be connected to a power source. There are several wooden planks stacked on top of each other, and a red power cord is visible on the top left corner of the image. The power supply has a small knob on the front, which is likely used to control the power supply.