How to add and use external storage on your Chromebook

Chromebooks are simple, fast, and built for cloud storage. But if you download files or work offline, you might run out of room. Don’t worry—adding external storage like a USB drive or SD card is an easy way to expand your space.

At Asurion, our experts help people get the most out of their devices every day. If you need extra storage on your Chromebook, here’s what to do.

What types of external storage work with a Chromebook?

Most Chromebooks work with the following storage devices:

• USB flash drives. These plug into the USB-A or USB-C port.
• SD or microSD cards. Many Chromebooks have a built-in card reader.
• External hard drives. Both solid-state and traditional hard drives will usually work if they're formatted correctly.
• Cloud storage. You can also store files in Google Drive, Dropbox®, or another cloud service.

Before you connect a storage device, make sure it’s formatted as FAT32, exFAT, or ext4—file types supported by Chrome OS. If your device isn’t recognized, you may need to format it using the Chromebook’s built-in tools.

How to connect and access external storage on your Chromebook

Follow these steps to add and use external storage:

1. Plug in your storage device

Insert your USB drive into a USB port or your SD card into the card slot. For an external hard drive, plug it into your Chromebook with a USB cable. If your Chromebook has only USB-C ports, you may need an adapter.

2. Open the Files app

Click the Launcher (circle icon) in the bottom-left corner of your screen. Then open the Files app—this is where you’ll manage all your storage. You should see your external device listed on the left side under External storage.

If your Chromebook is running slow or unresponsive while accessing files, try these tips to speed up a sluggish Chromebook.

3. Move or copy files

Click your device to view its contents. To move files from your Chromebook, drag them into a folder on the external drive. To save space, delete files from your Downloads folder after moving them.

For long-term storage, consider backing up files to the cloud. Here’s a guide on how to back up your Chromebook.

How to safely eject external storage

Always eject your external storage before removing it. Open the Files app, click the eject icon next to your device’s name, and wait for the notification that it’s safe to remove. This helps prevent data loss or corruption.

If your Chromebook doesn’t turn on after removing a device, follow these steps on how to fix a Chromebook that won’t turn on.

How to format an external drive for your Chromebook

If your device isn’t showing up, it may need to be reformatted:

• Plug the drive into your Chromebook.
• Open the Files app.
• Right-click the device name and choose Format device.
• Follow the prompts. This will erase everything, so back up your files first.

What to do if your external storage isn’t working

Try these steps:

• Check the connection. Remove and reinsert the device.
• Try another port. If you have more than one, switch ports.
• Restart your Chromebook. This can fix minor issues.
• Reformat the drive. If nothing works, formatting may help.

Still having trouble? Visit a uBreakiFix® by Asurion store to get help from a Chromebook expert.

Other ways to free up space on your Chromebook

Using external storage is just one way to manage space. You can also:

• Use Google Drive to store large files in the cloud.
• Clear your Downloads and Trash folders regularly.
• Uninstall unused apps.
• Move photos and videos to a cloud backup or external device.

Learn more about how to back up files on a Chromebook if you're trying to offload documents.

FAQ

What type of USB drives work with a Chromebook?

Most USB-A and USB-C flash drives work, as long as they're formatted as FAT32 or exFAT.

Can I use an external hard drive with a Chromebook?

Yes. Just make sure it’s properly formatted, and plug it in using a USB connection.

How do I transfer files from my Chromebook to an SD card?

Use the Files app to drag files from your Chromebook's folders into the SD card.

Why won’t my Chromebook recognize my USB drive?

Your Chromebook might not recognize the drive if it's using an unsupported format, is corrupted, or if there’s an issue with the port or adapter. Try reformatting the drive to FAT32 or exFAT, using a different port, or restarting your device.