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How to change registry keys to increase USB power to 500mA?
I ran into this problem while on Win7 & found a fix (YouTube - ‪Apple Keyboard Hack - Fully-powered USB ports on a PC!‬‏) . Unfortunately, the YouTube video has been removed.
I use an Apple keyboard that has 2-USB ports, one on each side of the keyboard. The power limits for these USBs was 100mA on Win7 so using a mouse is OK. But, if I plug in a USB drive or better yet my Wacom Tablet I get an error stating the power is too low to support. I believe the ports need to be 500mA.
I don't recall exactly how the YouTube author changed the registry key value but he did & I used these 2 USBs without problems for 4 years. I'm having trouble finding the USB location using run / regedit.
Below are two screen grabs I used in my post 4 years ago. Windows 10 looks a lot different. Anyway, the USB I need is port 3 hub 7. Any suggestions how to navigate the registry key to that location & edit from 100mA to 500mA.
Port properties after registry editing.
Last edited by GARoss; 11 Aug 2015 at 09:02.