Whether you need to be better about backing up your computer, or are just excited to finally get some extra storage for your PS4, Prime members can pick up a WD My Passport 4TB drive for just $113 today, within just a few bucks of the best price they’ve ever listed.

It wasn’t that long ago that drives over 2TB required an extra power supply, but that’s not the case here; just plug it into a USB port, and it’s good to go.