Today, my father bought a game machine in the house, but when the power was connected, he couldn’t get the game on. Ask a salesperson at the mall, and the salesperson says that a adapter is needed, because the power at home is AC, and the game machine needs direct current, so a adapter is needed to power the game machine. My dad and I came home with adapter, and connected to adapter. It really turned the game on to the game machine. Adapter is amazing. It can make DC and AC converse freely. With adapter I can play my game, so happy.