What should be checked when buying a hard drive for backups?

When buying a hard drive for backups, the key things to check are: storage capacity (aim for at least 2x your current data), drive reliability (look for MTBF ratings), and the connection type (USB 3.0 or USB-C for external drives). HDD offers more GB per dollar for large archives, while SSD is faster but more expensive. Brands like WD and Seagate are generally solid choices. Also make sure the drive has at least a 2-3 year warranty.

The main things I'd check are storage capacity, read/write speed, and reliability ratings. For backups specifically, I'd prioritize a drive with at least 2TB and look for ones with a 3-year warranty or more. Brand reputation matters too — WD and Seagate both have solid track records for external backup drives.

The main things I'd look at are storage capacity, transfer speed, and reliability ratings. For backups you generally want at least 2x the size of what you're backing up. HDD is fine for large backups on a budget, but an external SSD is faster and more durable for portable use. Also check whether it uses USB 3.0 or USB-C, and look for drives with a warranty of at least 2-3 years.

For backups, storage capacity and reliability are the top things to look at. I'd also pay attention to the read/write speed if you're doing large backups regularly — it saves a lot of time. Checking reviews for long-term durability is worth it too, since the whole point of a backup drive is that it's there when you actually need it.

A few things I always check: capacity (make sure it fits your data with room to grow), interface (USB 3.0 or better for fast transfers), and whether it's HDD or SSD — SSDs are more durable for portable use. Also look at reviews for long-term reliability, and consider getting two drives and keeping one offsite.

For backup drives, the main things to check are: storage capacity (get at least 2x your current data), drive type (HDDs are cheaper per GB for large backups, SSDs are faster and more durable), interface (USB 3.0/3.1 or USB-C for speed), and the warranty period — 3-5 years is standard for a reliable drive. Also look at the RPM for HDDs (7200 RPM is better than 5400 for regular use), and whether it's portable or desktop. Brands like Seagate, WD, and Toshiba have solid reputations See More for backup drives.

One thing that's often overlooked is whether the drive uses SMR (shingled magnetic recording) or CMR (conventional magnetic recording). SMR drives can be significantly slower during sustained writes — which matters a lot for large backups — so CMR is generally the better choice for backup workloads. Beyond that, I'd also factor in how often you plan to run backups: if it's daily or continuous, desktop-class or NAS-rated drives handle the duty cycle better than budget portable See More ones.

For backups, storage capacity and reliability matter most — look at the drive's error rate and warranty period. For home use, a 2TB external HDD from a reputable brand like WD or Seagate works well. Also check the transfer interface (USB 3.0 or above) so backups don't take forever.

Storage capacity and interface type (USB 3.0 or faster) are the two most important things I check first. Beyond that, I always look at the drive's read and write speeds, since a slow drive makes the backup process painful if you have a lot of data. It's also worth checking whether the manufacturer offers a decent warranty, as that gives you a rough signal of how reliable the drive is expected to be.

For backups, storage capacity and reliability matter most. Look for drives with a high MTBF rating and choose NAS or desktop-class drives over laptop drives for sustained read/write cycles. Interface speed is worth considering too — USB 3.0 or higher makes a real difference for large transfers. I'd also recommend checking if the drive supports hardware encryption, since protecting backup data at rest is often overlooked until it's too late.

Reliability and capacity are the top priorities for backup drives. I'd look for drives with at least a 3-year warranty and check the manufacturer's annualized failure rate (AFR) — NAS-rated drives like WD Red or Seagate IronWolf tend to handle regular write cycles better than standard desktop drives. Also make sure the interface matches your setup (USB 3.0 for portable, SATA or NVMe for internal), and consider encryption support if you store sensitive files.

Capacity and reliability ratings are the two most important factors. For backups, an HDD with a 3-5 year warranty and a low annualized failure rate (AFR) is a solid choice — brands like WD Red or Seagate IronWolf are designed for continuous use. Also check that the interface (USB 3.0, SATA, NVMe) matches your setup, and consider a drive with built-in encryption if you store sensitive files.

The main things I'd look at are storage capacity versus price per GB, the drive's reliability rating (check reviews on sites like Backblaze's hard drive stats), and whether it supports the interface you need (USB 3.0, SATA, etc.). For backups specifically, I'd also prioritize drives with a longer warranty — 3 to 5 years is a good sign the manufacturer trusts their hardware. If you're backing up large amounts of data regularly, an NAS-oriented drive like a WD Red or Seagate IronWolf See More handles sustained writes much better than a desktop drive.