This AC wall charger is designed for use with the Kensington K39521US KeyFolio Bluetooth Keyboard. It provides a reliable power source to keep your keyboard charged and ready to use whenever you need it. The charger is black in color and is made in China. This charger is compatible with the Kensington K39521US keyboard and is great for use at home, in the office, or on the go. It is easy to use and provides a convenient way to keep your keyboard charged so you can work efficiently. With this charger, you can enjoy the convenience of a fully charged keyboard without worrying about its condition.