

Once you’ve determined the file system you need, you can start formatting your SD card.

Cards larger than 32GB need the file system exFAT. For SD cards less than 32GB, please use the file system FAT32. Then you have to know which file system to use. If your Mac doesn’t have a built-in card reader, you’ll have to buy one. Some Macs have them, but many don’t.įortunately, SD card readers are not expensive. Before formatting SD cards on Macīefore formatting an SD card in macOS, you will have to make sure you have a card reader. If you are not sure how to format an SD card on Mac and want to do it safely, please follow these steps. However, there are risks, and you could lose your data or corrupt your SD card if you don’t take precautions. It also allows you to change the file system of an SD card (new or old), allowing other devices to read and write to it, including Macs. Did you buy a new SD card or are you just reusing a spare one? It may be a good idea to format it first.įormatting an SD card makes a clean slate, removing any trace of old files.
