SSDs have no moving parts and can transfer data much quicker, and NVMe’s even more so. HDDs use physical, analog discs to read and write data and are the slowest of the lot for it, but they’re also significantly more affordable. Drive Type: There are three main types of hard drives to pick from: Hard Disk Drives (or HDDs), Solid-State Drives (or SSDs), and Non-Volatile Memory Express SSDs (or NVMes for short).
