List of Hub Dynamo USB Chargers and Charging Systems for Electronic Devices - CyclingAbout.
All About The Best Dynamo USB Chargers For Bicycle Touring and Bikepacking - CyclingAbout.
Kemo M172N Bicycle Power Charge Controller USB Connection for Mobile Phones, Navigators, PDAs, MP3 Players on Bicycle Dynamo Input voltage up to max. 70V with LED Indicator : Amazon.co.uk: Business, Industry &
USB charger for bicycle dynamo B-CHARGE | Sartori Bikes - USB charger for bicycle