How To Use MacBook Pro SDXC cards?

The MacBook Pro has an SDXC card slot that allows you to insert SDXC memory cards. SDXC (Secure Digital Extended Capacity) cards are a type of SD card that can store very large amounts of data, up to 2 terabytes. They are commonly used in digital cameras, camcorders, and other devices. Using an SDXC card with your MacBook Pro allows you to easily transfer photos, videos, and other files to and from your computer. Here are some tips on how to properly use SDXC cards with your MacBook Pro:

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Inserting the SDXC Card

To insert an SDXC card into your MacBook Pro:

  1. Locate the SDXC card slot on the side of the MacBook Pro. It is a thin rectangular slot next to the USB ports.
  2. Hold the SD card with the metal contacts facing down and pointing toward the computer. SD cards have one angled corner that helps orient the card correctly.
  3. Gently slide the card into the slot until it clicks into place. Do not force it in – if you meet a lot of resistance you may have the card upside down.
  4. Push the card in until you hear it click. The card will fit nearly flush with the side of the notebook when inserted properly.

Do not remove cards when your Mac is asleep or turned off, as this can lead to data corruption or loss. Always properly eject the card first.

Viewing the SD Card Contents

Once inserted, macOS will automatically detect the SD card and mount it on your system. To view the contents:

  1. Click the Finder icon in the Dock to open a Finder window.
  2. In the left sidebar, locate the SD card under the “Devices” section. It will be labeled with the capacity of the card (e.g. “32 GB SD Card”).
  3. Click the card name to view its contents in the right pane.

You can now access the files on the card just like any other folder on your Mac. Copy files to and from the card or organize them into folders.

Ejecting the SD Card

It is important to properly eject the SD card before removing it from your MacBook Pro to avoid potential data loss or corruption. To eject:

  1. In the Finder sidebar, right-click the card’s name.
  2. Choose “Eject” from the pop-up menu.
  3. Wait for the eject icon to appear next to the card name, indicating it is safe to remove.
  4. Gently pull the SD card out of the slot.

Once ejected properly, you can safely remove the card without risking any data damage.

Using SD Card Adapters

Your MacBook Pro’s SD card slot supports full-size SD cards. If you have a smaller card like MicroSD or MiniSD, you’ll need an adapter.

  1. Insert the smaller card into the appropriate sized adapter.
  2. The adapter will then allow it to fit into the standard SD card slot.
  3. Make sure it is fully inserted into the adapter before attempting to insert.

Troubleshooting Tips

Here are some troubleshooting tips if you have issues using SDXC cards with your MacBook Pro:

  • If the card is read-only, check the lock switch on the side of the card. Sliding it up will allow the card to be read and written to.
  • If the card is not recognized at all, try reinserting it fully into the slot. There may be some debris causing a loose connection.
  • Use name brand cards that are marked as SDXC. Lower quality generic cards can sometimes have compatibility issues.
  • If files become corrupted, try re-formatting the SD card using Disk Utility. This will wipe the card clean.
  • Check that OS X is up to date. Older versions had more SD card issues. Keep your Mac’s software current.
  • Try other SD cards if possible to determine if the issue is with that specific card or something on your Mac.
  • As a last resort, reset the System Management Controller (SMC) on your Mac, as this can clear up SD card problems in some cases.

Following these tips will help ensure your SDXC cards work properly with your MacBook Pro. Let you store and transfer lots of high resolution photos and videos quickly!

Supported SD Card Types

The SD card slot on MacBook Pro models supports the following types of cards:

  • SD – The original SD card format. Supports cards up to 2GB capacity.
  • SDHC – SD High Capacity. Allows for cards ranging from 4GB up to 32GB capacity. Faster transfer speeds.
  • SDXC – SD Extended Capacity. Supports cards from 64GB up to 2TB storage. Optimized for high performance.
  • miniSD – A smaller version of the SD card. Requires an adapter to use in full-size slots.
  • microSD – An even smaller SD card version. Also needs a standard SD adapter. Popular in mobile devices.

Make sure to verify which card types your specific MacBook Pro model supports before purchasing. The latest MacBook Pros are compatible with the largest and fastest SD card versions.

Maximizing SD Card Speed

To get the best performance from your SDXC card:

  • Use cards rated for high transfer speeds. Look for cards marked UHS-I or UHS-II.
  • Directly copy files between the SD card and Mac SSD. This is much faster than copying to an external hard drive.
  • Format cards using the Mac OS Extended (Journaled) file system for optimal speeds.
  • Don’t overload the card with too many files. Try to keep under 10,000 files per card.
  • Test the card’s read/write speeds. Faster cards greatly improve file transfer times.
  • Eject and unmount the card properly before removing it from your Mac.
  • Keep your MacBook Pro OS and software updated to the latest versions.

Following these tips will provide the fastest SD card speeds and performance with your MacBook Pro.


Using an SDXC card is a convenient way to add high capacity external storage to your MacBook Pro. Just insert the card, view the contents in Finder, safely eject when finished, and remember to use an adapter if necessary for smaller card types. Following the steps in this guide, you can quickly transfer files between your SDXC card and MacBook Pro. With read speeds over 250MB/s on the latest MacBook Pro models, SD cards are one of the quickest ways to offload photos and videos from your camera to your computer.

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