USB accessories using too much power on MacBook Pro

I plugged in a 2014 LG slim DVD writer (using a usb to usb-c hub) and I get a notification stating, "USB Accessories Disabled: Unplug the accessory using too much power to re-enable USB devices. It then cuts off power to the writer. Is it possible that it's the hub or writer because of the age?

[Re-Titled by Moderator]

MacBook Pro 16″, macOS 12.5

Posted on Mar 13, 2024 6:15 PM

Similar questions

‘USB Accessory Using Too Much Power’ Issue My Accessories : an Arturia Keylab 61 (MIDI Keyboard) a Boss 505 Looper (audio looper) an Arturia MiniFuse (the Hub that the previous 2 things plug into) The Hub is the only device that connects into the computer directly (USB C to USB A) the Computer - a brand new M1 Mac Mini. when I plug the MiniFuse (the hub) into cpu : all good. Add the Looper : all good. Add the MIDI Keyboard : Get error message from title. Keyboard lights up for a second, then dies. How can it be “drawing too much power” if the Mac is plugged into the wall? background : I had this same setup , but with the smaller version of the Arturia Keyboard hooked up to my 2016 Mac Laptop + worked fine. Upgraded to larger midi keyboard, got the usb power message. Figured the larger unit was too much for a laptop so I broke down + bought the Mac Mini. Expecting a desktop plug-in to compensate for any power issues. But here we are. just spent $1K on this Mac to solve this issue & it hasn’t. So bummed & confused. Help?
9260 5
External CD/DVD Writer Not Powered By MacBook Air 2022? I just bought a new MacBook Air 2022. When I connect my LG/Hitachi Slim external CD/DVD reader/writer via USB-C (using an Apple dongle adaptor) the unit doesn't seem to get enough power. System information sees the drive but it makes a clicking noise about once a second, the power light doesn't come on, and I can't open the tray. The same combination works fine on my 2018 MBP so I'm confused. Isn't USB-C supposed to have standard set of specs for power? If the Air doesn't supply enough power, how do I find a drive that will work? I still need to read music CDs.
1638 1
USB Accessories disabled. Unplug the accessory... This just popped up. A search on the message results in basically useless answers. In my case everything was fine and my 2023 MacBook Pro 16" screen went to sleep. I am running Ventura 13.3.1. I have 7 attached drives with one directly connected to a thunderbolt port and the others hanging off a daisy chain of thunderbolt 4 hubs plugged into another thunderbolt port. None of the drives dropped, or at least I didn't get a message that a drive was disconnected. I see all 8 drives, including my internal one, still mounted on the desktop. I have nothing connected to my third thunderbolt port. So what accessory was disconnected? I should add that all the drives are working properly; not just showing on the desktop. Looking at the USB tree in the System Information app I see all my drives connected. I am going to reboot, but this message makes no sense. It really needs to explain what USB accessory was disconnected. Only the single drive, a Sandisk 4TB, would even be drawing power. The thunderbolt hubs should be providing power.
644 2

1 reply

HWTech

Level 9

69,512 points

Mar 14, 2024 8:26 PM in response to Apple_Help_User

Hard to say. If this is an unpowered hub, then it may just be the combination of both devices. Try connecting the DVD directly to the Mac using a USB-C to USB-A Adapter.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

USB accessories using too much power on MacBook Pro

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple Account.

Learn more Sign up