Brazen Brazen 56 1 1 gold badge 2 2 silver badges 7 7 bronze badges. Add a comment. Active Oldest Votes. Improve this answer. Is that possible? Those electronics are common. I have seen some attempts to provide DC directly to the magsafe adapter or DIY splicing of the wiring - but those are far less common.
The Overflow Blog. Podcast The first ten years of our programming lives. Featured on Meta. Now live: A fully responsive profile. USB specifications The specification of a USB port determines the maximum data-transfer rate speed and power delivered by the port.
If a USB device is slow or not recognized USB specifications all work with each other, but data-transfer speed and power are limited by the cable or device that uses the earliest specification. Plug your device directly into your Mac instead of a USB hub or other device. Your device might need more power than the port it's plugged into can provide. Update the software on your Mac. Also check with the manufacturer of your USB device for firmware or other software updates.
Then restart your Mac. Drives, cameras, keyboards, hubs, and other devices that plug into the ports on your Mac can request a limited amount of power. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products.
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