Busch & Muller USB-WERK AC
The USB-WERK supplies 5 V and up to 500mA current. An small integrated cache battery helps to provide a constant voltage supply at low speed or short stops. Includes standard USB-port adapter cable.
For these reasons, the USB-WERK is a perfect fit for charging/powering USB devices of any kind: mobile phone, GPS, MP3 player etc. Contains cable with USB socket.