The MacBook Air is delightfully lean, but it’s less than pleasing when its drive space runs thin. It’s a costly hassle to upgrade the internal drive, which makes TarDisk’s 64 gig SD drive expansion a very attractive alternative. It plugs right into the SD slot on the side of your laptop and stays out of the way, for an easy expansion that you can get right now for just $99.99.

LAS VEGAS — The makers of a tiny new device called the TarDisk Pear promise to permanently double your MacBook’s hard drive space in a matter of moments.

Simply slide the Pear into your MacBook’s SD card slot, run a quick setup (called “pearing”), and your hard-drive capacity will be permanently doubled.

“Pear is a one-click option for upgrading,” TarDisk’s Pierce Schiller told Cult of Mac at CES 2016.