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No display = shorted output, check device AND cable; helps you see if a device is drawing current and how much! BEST USB TOOL AROUND!!!!!
Verified purchase: Yes | Condition: New
I only wish it was reversed so that maybe I can see the face or maybe has a wire so that I can access in more ways! Most of my chargers are opposite from this design!
Verified purchase: Yes | Condition: New
great device for testing usb cables and chargers .. suprising how many are newarly useless
Verified purchase: Yes | Condition: New
good product
Verified purchase: Yes | Condition: New
Very convenient tool to check USB voltage and current consumption through it.
Verified purchase: Yes | Condition: New