There are several MacBook storage expansion cards that sit flush in the laptops’ SD card slot, but TarDisk is the only one that actually combines with your main disk in software to create a single logical volume, so you don’t have to deal with moving files back and forth.

For a limited time, the 256GB 13" MacBook Air version is $100 off on Amazon, and the 128GB model is also down to an all-time low $118.

If you want one for a MacBook Pro, you’ll need to head over to TarDisk’s site, and use code LAUNCHPAD to save $100 on any 256GB card. It should go without saying, but none of these are compatible with the newest MacBook Pros, which don’t include SD card slots.


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