SSDs use flash memory which writes data to memory chips rather than spinning disks. If you're looking to store 2 TB of data or less, an SSD offers tremendous value, boasting high speed, small size, and long lifespan. Pros: Speed, size, malfunction rates, lifespan Second, if you choose to fragment the information to protect your data recovery, the backup takes time. First, the spinning disks are more likely to break down if dropped or handled roughly. HDDs use spinning disks to write data, however, which creates two different problems. If you're looking to store a lot of data, then a traditional HDD might be the best option because larger capacities drives are more reasonably priced. Hard Disk DrivesĬons: Physical damage, physical size, speed Choosing between an SSD or HDD means taking a look at the pros and cons of each. The first step in creating a backup for your Mac is choosing an external drive that enables the best data recovery option. Choosing an External Drive: Solid-State Drive (SSD) or Hard Disk Drive (HDD)