Best Hard Drives (HDD) for Backup & Archive — Ranked by Price Per GB (2026)
Large capacity external drives for backups and archives. Updated October 2026.
As of October 2026, the lowest eligible unit price for hard drives (hdd) for backup & archive on BuyPerUnit is from the Avolusion PRO-H1 Series 14TB 7200RPM USB 3.2 Gen2 (10Gbps) External Hard Drive (for Windows or MacOS Desktop PC/Laptop) at $0.0257/GB ($359.99 total) from amazon. This list shows 10 recently checked offers matching backup & archive requirements across Amazon, Best Buy, and Newegg.
What to Look For
For backups and archives, capacity per dollar matters far more than transfer speed, which makes hard drives the natural choice. External desktop drives (which need wall power) offer the lowest cost per terabyte, while portable 2.5-inch drives trade some $/GB for bus-powered convenience. Buy at least twice the size of the data you're protecting so you can keep multiple backup versions, and pair the drive with a scheduled backup tool rather than manual copying. The drives below are ranked by price per gigabyte so your backup budget stretches as far as possible.
Top 10 Products
Frequently Asked Questions
Should I use an external or internal hard drive for backups?
External drives are simpler for most people: plug in, back up, unplug, and store somewhere safe. Internal drives are cheaper per gigabyte and better for an always-on backup destination inside a desktop or NAS, but they can't be easily taken offsite. Many people use both — internal for nightly backups, external for a periodic offsite copy.
How big should a backup drive be?
Plan for at least 2x the data you want to protect, and 3x if you want to keep several historical versions. Backup software that stores incremental snapshots needs headroom, and hard drives lose $/GB as you go smaller — a 4TB or 8TB drive is usually the sweet spot for household backups.
How long can I trust a hard drive to hold a backup?
Powered-off drives in a cool, dry place retain data reliably for years, but mechanical parts can seize if left idle too long. Spin the drive up and verify a few files every 6-12 months, and replace backup drives on a 3-5 year cycle. For anything irreplaceable, keep a second copy on different media or a cloud service.
What is the best hard drives (hdd) for backup & archive right now?
As of October 2026, the Avolusion PRO-H1 Series 14TB 7200RPM USB 3.2 Gen2 (10Gbps) External Hard Drive (for Windows or MacOS Desktop PC/Laptop) has the lowest eligible unit price in this list at $0.0257/GB ($359.99 for 14 TB) from amazon. We compared 10 products matching backup & archive requirements.