This is a high quality AC/DC adapter, it use the USB connector to power up other modules such as the Arduino or Crowduino. With this module, you do not need to power the crowduino with a PC any more. You may also need a Mini USB Cable or Type-B USB Cable For Arduino
Input voltage: 110~240V AC
Rated Frequency: 50~60Hz
Output Voltage: 5V
Max Output Current: 0.5A
Adapter Standard: US Standard + USB
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