This Evolve 13A double power socket from British General comes with two USB charging ports, allowing you to plug in an electrical device and charge mobile devices simultaneously without having to sacrifice a power socket. The socket has been designed with angled in line colour coded terminals and backed out captive screws for ease of installation, and fits a 25mm back box making it an ideal retro-fit replacement for existing sockets, and has a low profile screwless flat plate that clips on and off, making it ideal for modern interiors.