USB wall outlet with high speed 4 USB Type-A ports, each port supports up to 2.4 amps (4.2 amps total), 125VAC input, charge multiple devices simultaneously without adapters Easy to install with side and back wiring. Replace existing outlet minimizing cable clusters and bulky chargers, very convenient and space-saving Efficient power access for home or office, airports, hotels, shopping malls, especially kitchen countertop or beside table and bedsides LED power indicator. Decorator wall plate included. UL Certified Caution: 1. Do not unscrew the terminal screws too far or with excessive force. 2. Do not use power tools to loosen the terminal screws. 3. This usb outlet is not suitable for RVs