USB Accessories Disabled

I have the "USB Accessories Disabled Unplug the accessory using too much power to re-enable USB devices", I have been using an externally powered USB hub and this issue is new. Only occurs when I plug in my RK Keyboard to the USB charging cable. The cable is connected to the self powered hub and there is no issue with the Hub power as it is still charging the Macbook.

Posted on Jun 14, 2023 1:33 AM

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Posted on Jan 9, 2024 1:50 PM

I have this same issue and have NO devices plugged in

22 replies

May 2, 2024 7:12 AM in response to J.Cords25

Not sure if you will see this, but was there an explanation that made sense? I’ve read through the stream of comments and the only one that makes sense to me is that it is a glitch in the software. I change nothing (ignore the warning) and everything seems to continue to work just fine. I figure it is just part of the love/hate relationship I have with Apple.

May 6, 2024 3:03 AM in response to crashmccord

I'm having the same error on my 2019 MacBook Pro on the 14.4.1. My MacBook doesn't charge anymore when connected because my usb accessories are disabled (nothing except the charger is plugged in). Sometimes it charges when I use the lowest usb c port of my hyperdrive thunderbolt dock. (I'm using the official charger and cable and never used anything else). Does anyone know why this is happening?

May 16, 2024 2:00 PM in response to HWTech

@hwtech Does it matter if the laptop is drawing power from the hub? This problem started for me without any change in my peripherals and seemed related to the last Sonoma update.


Running an M1 MBP driving 5K and 4K ext monitors via two hubs plus a couple of external powered HDDs and a Wacom pad. The MBP is connected first to a powered hub, which is then daisy-chained to an unpowered hub. I also tried separately powering the laptop via the MagSafe cable without benefit.


Does an unpowered hub draw power from a powered hub between it and the laptop? Or directly from the laptop?


The warning pops up frequently then goes away for a tens of minutes and isn’t related to sleep/wake of the laptop.


This sounds like a bug but I guess I should do a NVRAM and SMC reset just to be sure after removing all peripherals. Then add them back one-by-one.


May 16, 2024 2:13 PM in response to woodmeister50

CalDigit Thunderbolt 4 Element Hub (powered)

Anker 555 USB-C Hub (8-in-1) (unpowered)


The Anker is only connected to my older 4K monitor via HDMI as the other hub has no HDMI port.


@woodmeister50


I also have an older Epson GT-S50 scanner attached via a 12ft USB-A cable, but the scanner is almost always powered off. Can that be a problem even when off? It's attached to my unpowered hub. Hasn't been a problem in the past.


USB Accessories Disabled

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