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DO NOT BUY!!!!!! When powered by external 9v source, it doesn't regulate to 5v and therefore sent 9v straight to the USB port destroying the CPU on the MAC. A $550 repair to replace the mac book logic board and CPU. Crap Chinese product -avoid at all costs!!
Used it in many projects nothing has broke so far and have had it for a week. Soldering done great every pin works the voltage regulator did get a little hot after being powered for just over an hour but that’s expected