usb superdrive says need power when attached to mac book using adaptor. adaptor power light is on

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usb superdrive says need power when attached to mac book using adaptor. adaptor power light is on

USB superdrive message says need power when connected to mac book with adapter. Power light on adaptor is on. plugged iPad in, it gets power.

Posted on Sep 15, 2021 11:59 AM

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Answer 1

Top-ranking reply

Grant Bennet-Alder

Level 10

140,453 points

Sep 16, 2021 12:32 PM in response to paule46

The Apple superdrive requires 900 MilliAmps. The standard for USB-2 devices is 500 MilliAmps.

You can see whether this is your issue by checking here:

 menu > about this Mac > (system report) > USB > ...

...the actual device

should show, along with how much USB power it is requesting and how much can be supplied.

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Answer 2

KMB_12

Community Specialist

Sep 16, 2021 12:27 PM in response to paule46

Hello paule46,

Thank you for using Apple Support Communities.

We understand that your USB superdrive is showing a message that it needs power when it is connected to your MacBook Pro. Take a look at the following support article for this message:

If you see USB Devices Disabled on your Mac - Apple Support

Best regards.

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usb superdrive says need power when attached to mac book using adaptor. adaptor power light is on

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