How To Choose An External Hard Drive For A Macįirstly, it’s important to understand that there are basically three types of external drive on the market:.What External Hard Drive Does Apple Recommend?.Best External Hard Drives For Mac Compared.OWC ThunderBay 4 Raid (Best For Storage Size) WD My Book Thunderbolt Duo (Best RAID Drive) WD My Book Duo Desktop RAID (Best For Security) SanDisk Professional Pro-G40 SSD (Best Thunderbolt Drive) Transcend StoreJet M3 (Best For Photographers) WD My Passport For Mac (Best For Time Machine) What’s The Best External Hard Drive For M1 & M2 Macs?.Do All External Hard Drives Work With Mac?.