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Very handy. These will test USB-C to USB-C, USB-C to Lightning, USB-C to USB-micro, USB-A to USB-C, USB-A to Lightning and USB-A to USB-micro.
It requires a USB-A to USB-C cable and basic 5 watt USB-A power supply (not included).
It tests Data+, Data-, VCC, Ground, and C connections. Does not test the extra conductors on Lightning or high speed USB-C cables.
Not only does it test conductivity, but I have notice some cables where the VCC LED was weaker indicating a poor quality cable (this could slow charging).
So all around a handy device.
I have bought 14 so far with only one failure (Banggood replaced the bad one). Thanks for the replacement!
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
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