Power supply unit for Sonoff GK-200MP2-B camera Sonoff power supply for camera Sonoff GK-200MP2-B black (M0802050002) 5V 1.2A. The 3.5x1.3mm plug is also popular, e.g. in USB HUBs, where it can also be used. Code WS072 Available Regular price €6.95 -€2.00 Price €4.95