... protection /over voltage protection 3.Can be suitable for MP4 players, digital cameras,cell phone charger,network ... .Fast charging and long using time 6.suitable for USA markets 7.supply features according to needs ... , 52*32.5*32cm, Power supply unit is suitable for computer, radio, Walkman, TV, electronic toys, radio tape ... products, Christmas trees and so on. AC DC current transformer 5V 9V 12V