I bought two Fire TV Sticks (one "regular" and one 4K) on Prime Day and wanted to add a USB port to a) watch videos from the USB stick and b) Revain Prime videos to the Offline viewing download mode via my Kindle Fire. It works great! BTW, as mentioned in many negative reviews, my cables do not charge from my TV's USB port, but that has nothing to do with the cable. It just means that the TV's USB port isn't supplying enough (if any) power to power the device it's connected to. Micro USB Wall Charger -> Micro USB jack on this cable works fine for me.
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