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Budget
Before anything else, you’ll want to figure out how much you’re willing to spend on a new hard drive. Compact solid-state drives that use flash memory are pricier than slower and bigger mechanical drives, but they have gone down in price over the last couple of years. Today, you can get a 1TB external SSD for as little as $65 or so. Very high-capacity SSDs tend to be quite pricey, so if you’re looking for a lot of storage for not too much money, you’ll likely have to opt for a mechanical drive.
Capacity
External drives start at 500GB and go all the way up to 22TB or so. For a lot of people, especially if you’re looking at a faster SSD, the storage sweet spot is 1TB or 2TB. If you need more than that, you’ll likely be deciding between spending a lot on a 4TB SSD or opting for a more affordable but slower 4TB or 5TB mechanical drive.
Data transfer speed
Solid state drives are delivering faster and faster data transfer speeds. SSDs that offer the fastest speeds are also quite pricey. You’ll have to decide just what kind of performance you want and need based on your use case and the PC you have (to get the fastest transfer speed you need a computer with the latest USB technology). Unless you regularly transfer massive video files, you probably don’t need a “pro” level storage device. Note that even the slowest SSDs tend to be about five times as fast as a traditional mechanical drive.
Compatibility
Most external drives are compatible with a wide variety of computers, including Macs, Windows PCs and Chromebooks. Things get more complicated when you get into the realm of game consoles. To store PS5 or Xbox Series X or S games, you’ll need to purchase a drive specifically for that task. You can use most external drives to store and play PS4 games or standard Xbox One games (off the drive), but you’ll need to install an internal drive to store and play PS5 games. Xbox Series X and S machines require you to buy either the WD Black C50 expansion card or Seagate Storage expansion card to store and play Xbox Series X or S games.
Security
Some of you may be storing sensitive data on your external storage drive. If that’s the case, look for drives that include security features, including encryption.
