If all of my USB ports work individually, why does plugging in a device sometimes disable or malfunction another? - Quora
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My Passport HDD didn't get enough power, then wouldn't initialize. Now, it won't even show up - Super User
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Not Enough Power Sockets? This Might Be the Coolest Chargers You Could Have! 3 USB Ports + Type-C Port + Voltage/Current
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