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Summary :

USB accessories disabled

Are you bothered by USB Device Disabled or USB Accessories Disabled when connecting a USB device to your Mac computer? If yes, you can read this post to know why this issue happens and how to get rid of it. MiniTool Software also shows you how to rescue data from your USB storage drive.

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USB Accessories Disabled/USB Devices Disabled on Mac

What does It Mean When It Says USB Accessories Disabled?

Like the Windows computer, there are also some USB ports on the Mac computer. With the USB ports, you can connect your USB flash drives, memory cards, cameras, keyboards, hubs, and other USB devices to your Mac computer for further use.

The USB device requires a limited amount of power from your Mac machine via the USB port to guarantee the normal operation. If the power is not enough, you can receive a warning message saying:

USB Device Disabled

Unplug the device using too much power to re-enable USB devices.

USB Device Disabled

The error message can also be:

USB Accessories Disabled

Unplug the accessory using too much power to re-enable USB devices.

USB Accessories Disabled

Tip: USB Device Not Recognized is an error message that occurs on Windows. If you are a Windows user and bothered by this issue, you can refer to this article to fix the issue: Fix USB Flash Drive Not Recognized & Recover Data – How To Do.

Top Reasons for USB Accessories Disabled/USB Devices Disabled

No matter which error message you receive, it always means that the device you connect with your Mac via the USB-A, USB-C, or Thunderbolt 3 (USB-C) port is not getting enough power. So it can’t work normally. However, this issue can also happen due to other reasons.

The common reasons are as follows:

  • The USB device you connect to your Mac needs more power to function.
  • Compared with reading data on the USB device, it requires more power to write to the drive.
  • The USB port is faulty.
  • The USB cable is broken.
  • The device driver is outdated.
  • The Mac firmware is outdated.
  • The USB device is not turned on.
  • The USB device is not recognized by your Mac.
  • And more….

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Focusing on these causes, we collect some methods that can effectively solve the USB Accessories Disabled/USB Devices Disabled issue. We will show them in this post. You can try these methods to find a suitable one.

How to Solve USB Accessories Disabled/USB Devices Disabled

Here are different solutions for different situations. If you are not sure the exact cause of your USB Accessories Disabled/USB Devices Disabled issue, you can try these solutions one by one until you find the proper one.

Solution 1: Use Your Device as a Self-Powered Device

In most cases, the USB Accessories Disabled/USB Devices Disabled issue happens because there is not enough power for the USB device to function. But you can use your device as a self-powered device because a self-powered device can get power from an electrical outlet or its battery.

Solution 2: Use a Powered USB or Thunderbolt 3 (USB-C) Hub

You can also connect your USB device to a powered USB or thunderbolt 3 (USB-C) hub if possible because these ports can power to and from computing devices. This can fully solve the problem of insufficient power for the USB device.

Solution 3: Unplug the Unnecessary USB Devices

The more USB devices you connect to your computer, the more power they will need to use. To get enough power, you need to reduce the number of bus-powered devices that are connected to your Mac. So, you can just unplug the USB devices you don’t need to use currently.

Solution 4: Plug the USB Device Directly into Mac

If you have connected your USB device to your Mac via a multiport USB adapter, the power supply for the USB device will be affected. Then, you can unplug the device from the adapter and then directly plug the device into your Mac machine. The USB Accessories Disabled/USB Devices Disabled issue should disappear.

Solution 5: Make Sure You Are Using the Right USB Port and Cable

The USB port and cable you are using may not support the USB device you are using. For instance, if the USB device is designed with USB 3 specification, it will not get enough power when you connect it to your Mac using a USB 2 port or cable.

So you can go to check the specification for your USB device and see whether you are using the right USB port and cable. If not, you need to use the right accessories instead.

Solution 6: Try a Different Cable or Adapter

If all the above methods don’t work for you, you should consider whether the cable you are using is defective or damaged. You can use another cable to see whether everything can go back to normal. If you are using a USB adapter, you can also use another adapter to have a try.

Solution 7: Try another Port

If your Mac device has more than one Thunderbolt 3 port, you can unplug the USB device from the current Thunderbolt 3 port and then connect it to another port that is far away from the current one. For instance, if your USB device is plugged into the port on the left side of your MacBook Pro, you can connect the device to the Thunderbolt 3 port on the right side to have a try.

Tip: Sometimes, the USB ports on Windows may stop working. If you are bothered by this issue, you can refer to this post to solve the issue: If Your USB Port Not Working, These Solutions Are Available.

Solution 8: Reset SMC

System Management Controller, which is also known as SMC, is responsible for the physical parts of a Mac device. The physical parts include battery management, USB accessories connection, and more.

If you encounter the USB Accessories Disabled/USB Devices Disabled issue on your Mac, you can reset SMC to have a try because this action can solve some certain issues related to power.

Solution 9: Reset PRAM/NVRAM

Both PRAM (short for Parameter Random Access Memory) and NVRAM (short for Non-Volatile Random Access Memory) are used to store Mac system settings like sound volume, display resolution, startup disk selection, time zone, and more.

Some users reflect that they solve the USB Accessories Disabled/USB Devices Disabled issue by resetting PRAM/NVRAM. You can also try this solution:

1. Shut down your Mac.

2. Press and hold the Command, Option, R, and P keys at the same time when you turn on your Mac.

Command, Option, R, and P keys

3. Release these four keys after about 20 seconds, during which your Mac may restart.

  • If your Mac device plays a startup sound, you need to release these four keys after you hear the second startup sound.
  • If your Mac device has the Apple T2 Security Chip, you need to release these keys when the Apple logo appears and disappears for the second time.

Solution 10: Update the Device Driver or Firmware

The USB Accessories Disabled/USB Devices Disabled issue can also happen when the device driver or firmware on your Mac is outdated. To rule out this possibility, you can update the device driver to have a try. You can go to the manufacturer official site to get the latest version.

To update the firmware for your Apple accessories, you need to update your Apple software by clicking Apple logo > System Preferences > Software Update to check for updates and follow the guide to complete the system upgrade.

Mac Software Update

Solution 11: Turn on Your USB Device

If you connect a camera to your Mac, you still need to turn on the camera after a cable connection. Otherwise, the USB Accessories Disabled/USB Devices Disabled issue can easily happen. You can just make a confirmation by pressing the power button on your camera.

Solution 12: Ask a Professional for Help

If all the above solutions don’t work for you, the issue should be serious. You may not solve it by yourself. The safest way is to send your Mac device and the USB device to a professional and ask him/her for help. For example, you can task your machine to the local Apple Store for help.

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Bonus: Recover Data from Your USB Device on Mac

If the USB device you are using stores some important files and the device is inaccessible, you can use professional Mac data recovery software to do the job.

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Stellar Data Recovery for Mac is a good choice. You can use this software to recover data from different kinds of data storage devices on Mac. Even if the storage device is inaccessible, this software can work to rescue data from it.

This software has a trial edition. You can use this freeware to scan the USB drive you want to recover data from and then check whether it can find your needed files. You can go to the MiniTool official download center to get this free tool.

Here is a guide on how to use this Mac data recovery software to rescue your data from your USB drive on Mac:

1. Download and install this software on your computer.

2. Connect your USB device to your Mac and open the software.

You will see the following interface in which the Recover Everything button is turned on by default. If you only want to recover certain types of files like documents, emails, videos, audios, and photos, you can only select your needed types.

software interface

3. Click Next to continue.

4. On the following interface, you need to select the drive you want to recover data from. If you want to perform a deep scan, you need to turn on the button for Deep Scan. Then, click Scan to start the scanning process.

select the target drive to scan

5. When you scanning ends, you can see the scan results that have three categories: Classic List, File List, and Deleted List. You can select your needed category and then view & find your needed files.

scan results

6. You are not allowed to use the trial edition of this software to recover files. But you can update it to a full edition and then recover all your needed data without limits.

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Bottom Line

We hope the solutions mentioned in this article can help you solve the USB Accessories Disabled/USB Devices Disabled issue on Mac. Besides, when you lose your Mac data by mistake, just try Stellar Data Recovery for Mac to get them back. If you have any related issues, you can let us know in the comment or contact us via [email protected].

USB Accessories Disabled Mac FAQ

Can a USB port provide power to a device?
Yes, a USB port can provide power to a USB device. A USB 3 cable can supply up to 900 milliamps of power. A low-power device can directly draw power from the bus. A high-power device has its own power supply, only drawing less power from the bus.
How do I get my Apple USB SuperDrive to work?
You can connect your SuperDrive to your Mac via a USB-A port and then insert a disc for further use. If you want to connect your SuperDrive to a Thunderbolt 3 (USB-C) or USB-C port on your Mac, you also need to use an adapter like USB-C Digital AV Multiport Adapter, USB-C VGA Multiport Adapter, and USB-C to USB Adapter.
Does the magic keyboard have a USB port?
Magic Keyboard is a new keyboard for Mac. It has three key standouts: a hinge that allows you to adjust the viewing angle, a trackpad, and a USB-C port.
Does Apple wireless keyboard have USB ports?
The Apple Wireless Keyboard interacts over Bluetooth wireless technology. It has no USB connectors or ports.
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