4USB版排插：（4个USB接口同时工作时最大输出总电流4A、总功率20W，单个USB充电时四个USB接口电流分别为1A、1A、2A、2A，其中最下方的2A接口为smart智能接口，如果你的手机或平板上面的2A接口充电比较慢，可以换这个smart接口充电，兼容性更强）
4USB version of the row of plug: (4 USB interface at the same time the maximum output total current 4A, the total power of 20W, a single USB charging four USB interface current were 1A, 1A, 2A, 2A, the bottom of the 2A interface for the smart Smart interface, if your phone or flat above the 2A interface charge is relatively slow, you can change the smart interface charge, more compatible)