USB vertical female base 4pin waterproof interface with screw cap waterproof connector, USB waterproof connector USB vertical plug 10.5 waterproof female base, USB waterproof female base definition, short body USB base, horizontal USB mother base, USB connector, USB socket is a safe and energy-saving universal socket with USB interface, including the socket body, in the socket body. There is a USB mother seat on the top, which is equipped with a linkage switch and a USB socket. The meter depth water pressure of the USB mother seat is: P= ρ GH=1000 * 10 * 1=10Kpa, 25-50kpa is equivalent to a water pressure of 2.5-5.0 meters deep (waterproof specifications require a water pressure of 1 meter deep, and air pressure testing is conducted with a tightening test of 25-50kpa); The input end of the block charger module is connected in parallel with the output end of the linkage switch inside the socket body, and the positive and negative poles of the output end, are correspondingly connected to the positive and negative poles of the power supply end of the USB socket. The input end of the linkage switch is connected to the power supply. This utility model attaches multiple USB sockets to a universal switch, and only connects the USB socket to the mains when electricity is needed. This not only has the advantage of simply connecting low-voltage electrical appliances to the USB socket on the universal switch with a USB plug cable to charge the electrical appliances, but also has the advantage of not connecting the device to the power supply for a long time, extending the device's lifespan, saving electricity, and eliminating hidden dangers.