This little guy is worth his weight in gold! Ever had to troubleshoot power issues with a USB device?Ever wanted to charge your tablet and weren't sure you had the right USB adapter? How about the ability to see exactly how much current a device is drawing from your USB port?This compact USB tester is the tool you've been looking for.

The V20 has a USB A Plug on one end and a USB A Jack on the other.Simply add it inline with your USB device and let the brilliant OLED display answer all of your USB power related questions.The display shows three valuable readings; USB Voltage， Current being drawn by your USB device， and Capacity.Lastly in the upper right hand corner the device shows you the time connected.