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Best 24TB Hard Drives by Price per TB

At 24TB, pick on warranty and model reliability as well as price: a five-year-warranty NAS- or enterprise-class drive near the top of the ranking below is often a better buy than the absolute cheapest offer.

A 24TB drive is for people who are short on bays, not budget: NAS owners filling the last slots in a chassis and data hoarders consolidating shelves of smaller drives. It shows up as about 21.8 TB in Windows. The list below ranks today's Amazon offers for exactly 24TB — internal and external, new and renewed — by price per TB, re-ranked on every snapshot refresh.

24TB is near the top of what retail sells, so each drive carries the most data per bay — and the most data at risk per failure. Reliability also varies more by model than by capacity: in Backblaze's fleet data, one 24TB model failed more than ten times as often as another. Treat price per TB as the starting point, then weigh warranty length and the model's track record.

  1. Western Digital Ultrastar DC HC580 WUH722424ALE604 0F62798 24TB 7.2K RPM SATA 6Gb/s 512e 3.5in Enterprise Hard Drive (Renewed)

    $689.00 · $28.71/TB as of Sep 26, 12:43 PM

    Ranks #1 at $28.71/TB. Renewed condition, SATA, 3.5".

  2. Seagate Expansion 24TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP24000400)

    $718.53 · $29.94/TB as of Sep 26, 12:43 PM

    Ranks #2 at $29.94/TB — 16% above the typical external HDD of similar size. New condition, USB.

  3. Seagate Exos ST24000NM000C 24TB 7.2K RPM SATA 6Gb/s 512e 3.5in Enterprise Hard Drive (Renewed)

    $739.99 · $30.83/TB as of Sep 26, 12:43 PM

    Ranks #3 at $30.83/TB — 7% above the typical HDD of similar size. Renewed condition, SATA, 3.5".

  4. Seagate Exos X24 24TB Enterprise Hard Drive HDD SATA 6Gb/s 512MB Cache 7200 RPM 512e CMR Helium Sealed 3.5in Hard Drive ST24000NM000H (Renewed)

    $759.99 · $31.67/TB as of Sep 26, 12:43 PM

    Ranks #4 at $31.67/TB — 10% above the typical HDD of similar size. Renewed condition, SATA, 3.5".

  5. Seagate Exos X24 ST24000NM000C 24TB 7200RPM SATA 6Gb/s 512MB Cache CMR 3.5-Inch Enterprise Hard Drive

    $789.99 · $32.92/TB as of Sep 26, 12:43 PM

    Ranks #5 at $32.92/TB — 17% below the typical HDD of similar size. New condition, SATA, 3.5".

  6. Seagate IronWolf Pro 24TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST24000NT002)

    $859.99 · $35.83/TB as of Sep 26, 12:43 PM

    Ranks #6 at $35.83/TB — 10% below the typical HDD of similar size. New condition, SATA, 3.5".

  7. Seagate Skyhawk AI 24TB Video Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 512MB Cache for DVR NVR Security Camera System with in-House Rescue Services (ST24000VE002)

    $859.99 · $35.83/TB as of Sep 26, 12:43 PM

    Ranks #7 at $35.83/TB — 10% below the typical HDD of similar size. New condition, SATA, 3.5".

  8. Seagate Exos X24 24TB Enterprise Hard Drive HDD SATA 6Gb/s 512MB Cache 7200 RPM 512e CMR Helium Sealed 3.5in Hard Drive ST24000NM000H

    $990.00 · $41.25/TB as of Sep 26, 12:43 PM

    Ranks #8 at $41.25/TB — 4% above the typical HDD of similar size. New condition, SATA, 3.5".

Compare live hard disk prices for all matching deals →

What to look for

Check the class, because 24TB is sold as desktop, NAS, and enterprise drives. Desktop-class drives are rated for 120 TB of writes a year, limited power-on hours, and a 2-year warranty; pro NAS and enterprise-class drives for 550 TB a year and 5 years. The listings can look alike at a glance, but only the second group is built for an always-on array.

Plan around a day-long rebuild. Writing 24TB once at top sustained speed — about 280 to 300 MB/s for drives this size — takes roughly 22 to 24 hours, and a real RAID rebuild takes longer. At that length, single parity leaves an array exposed for a long time; dual parity or a separate backup is the sane default. Seagate lists its current 24TB drives, desktop-class included, as CMR, so SMR won't stretch that time further.

Read the condition before the price. Renewed 24TB drives are often ex-data-center enterprise models — solid hardware — but the warranty comes from the seller and is usually shorter than the maker's five years. For a primary copy of data, the full maker warranty is worth a modest price-per-TB premium; for a second copy, a renewed drive can be a sensible economy.

FAQ

Is a 24TB hard drive a good idea?

Yes, if you need the most storage per bay and can live with long rebuilds. One full write takes about 22 to 24 hours even at top speed, and real rebuilds take longer, so pair large drives with dual parity or a separate backup.

What is the largest hard drive you can buy?

24TB is near the top of retail. Larger 28TB and 30TB drives are sold at retail but often cost more per TB, and the very largest drives go mainly to data centers. This page covers 24TB drives only.

How much does a 24TB hard drive cost?

It changes with the market, so this page ranks live offers by price per TB instead of quoting a number. New and renewed drives appear on the same list with their condition marked, and their warranties differ, so compare like with like.

Are refurbished 24TB drives worth it?

They can be, especially for a second copy of data. Many are enterprise-class drives from data centers, but the warranty comes from the seller rather than the maker and is usually shorter. Factor that shorter coverage into the price per TB.