i recently got a 5v usb passthrough from madvapes, it does have low voltage protection, where it does not work if there is not enough power going to it... well i have a usb plug in for the wall on its way... will be here next week... well i have been using the passthrough on my laptop.. well im starting to wonder if it can mess up the usb port, or other internal parts in the computer.. because i definitely do NOT want to mess up my macbook.... so please e-cigarette forum, shed some light on my question 
Thanks, And HAPPY vaping!!!

Thanks, And HAPPY vaping!!!

