Rugged pick: Glyph Blackbox Plus 1TB hard drive.Best for speed: Samsung T7 Portable SSD from 500GB.Fan favorite: G-Technology G-Drive from 1TB.Here are a few options to get you started on your search for the best USB-C hard drive for your Mac. Even if you use cloud storage to back up all of your data, you should always have a safe 'hard' copy on a hard drive if your data is important. Here's why: if you back up your Mac in multiple places, then your data is far safer, and you're prepared for any eventuality. You might be wondering why you need a USB-C hard drive for your Mac.