Most people will want a case for their smartphones, and in this new gadget, the case also adds functionality by giving you extra storage for your iPhone.

The new iXpand Memory Case for iPhone6 and iPhone 6s from SanDisk is offering three different versions of the case: 32GB, 64GB and 128GB for $129.99 in four different color varieties – blue, grey, red and teal.

For the power-conscious, you can also purchase an optional add-on battery pack. For more perks, check out the video below: