Fresh/Last checked Jul 04, 02:25 AM·Updated daily
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Best Internal Hard Drives by Price per TB

Internal hard drives are still the cheapest way to own a terabyte. The list below ranks today's Amazon offers purely by price per TB — the number that matters when you're buying raw capacity — and it re-ranks itself every time our price snapshot refreshes.

Each entry notes how the offer compares to the typical price for drives of its size and condition, so you can tell a genuinely good deal from a big number with a small drive behind it.

  1. Basicnology NAS HDD 14TB 7200RPM SATA 6Gb/s 128MB Cache 3.5inch Internal NAS Hard Drive (BG14TSA256N) - 3 Years Warranty (Renewed)

    $319.99 · $22.86/TB as of Jul 04, 02:25 AM

    Ranks #1 at $22.86/TB — 10% below the typical 14TB HDD. Renewed condition, SATA, 3.5", 3 yr warranty.

  2. MDD (MD16TSATA25672NAS) 16TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch NAS Hard Drive - 5 Years Warranty (Renewed)

    $379.99 · $23.75/TB as of Jul 04, 02:25 AM

    Ranks #2 at $23.75/TB — 4% below the typical 16TB HDD. Renewed condition, SATA, 3.5", 5 yr warranty.

  3. Seagate Exos 26TB Internal Hard Drive HDD - 3.5 in CMR SATA 6Gb/s, 7200 RPM, 512MB Cache, 2.5M MTBF (ST26000NM000C) (Renewed)

    $619.99 · $23.85/TB as of Jul 04, 02:25 AM

    Ranks #3 at $23.85/TB — 16% below the typical 26TB HDD. Renewed condition, SATA, 3.5".

  4. Seagate Exos ST28000NM001C 28TB 7200 RPM SATA 6Gb/s 512e 3.5in Enterprise Hard Drive (Renewed)

    $679.99 · $24.29/TB as of Jul 04, 02:25 AM

    Ranks #4 at $24.29/TB — 14% below the typical 28TB HDD. Renewed condition, SATA, 3.5".

  5. MDD MAXDIGITALDATA MDD (MDD14TSATA25672E) 14TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Enterprise Hard Drive - 5 Years Warranty (Renewed)

    $339.99 · $24.29/TB as of Jul 04, 02:25 AM

    Ranks #5 at $24.29/TB — 4% below the typical 14TB HDD. Renewed condition, SATA, 3.5", 5 yr warranty.

  6. Toshiba MG08ACA16TE 16TB 7200RPM 512e 3.5" SATA Enterprise Desktop Hard Drive (Renewed)

    $388.99 · $24.31/TB as of Jul 04, 02:25 AM

    Ranks #6 at $24.31/TB — 2% below the typical 16TB HDD. Renewed condition, SATA, 3.5".

  7. MDD 16TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5inch Enterprise Hard Drive (Renewed)

    $389.99 · $24.37/TB as of Jul 04, 02:25 AM

    Ranks #7 at $24.37/TB — 1% below the typical 16TB HDD. Renewed condition, SATA, 3.5".

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

    $585.00 · $24.38/TB as of Jul 04, 02:25 AM

    Ranks #8 at $24.38/TB — 6% below the typical 24TB HDD. Renewed condition, SATA, 3.5".

  9. Seagate Exos 28TB Internal Hard Drive HDD - 3.5 in CMR SATA 6Gb/s, 7200 RPM, 512MB Cache, 2.5M MTBF - ST28000NM000C (Renewed)

    $689.99 · $24.64/TB as of Jul 04, 02:25 AM

    Ranks #9 at $24.64/TB — 13% below the typical 28TB HDD. Renewed condition, SATA, 3.5".

  10. Seagate Exos ST26000NM001C 26TB 7200 RPM SATA 6Gb/s 512e 3.5in Enterprise Hard Drive (Renewed)

    $649.99 · $25.00/TB as of Jul 04, 02:25 AM

    Ranks #10 at $25.00/TB — 12% below the typical 26TB HDD. Renewed condition, SATA, 3.5".

Compare live hard disk prices for all matching deals →

What to look for

Recording technology matters more than brand. CMR (conventional) drives handle sustained and random writes predictably; SMR (shingled) drives are cheaper per TB but slow dramatically under heavy rewrite workloads. For a desktop that mostly reads, SMR is fine — for anything write-heavy, insist on CMR.

Watch the warranty column. Desktop-class drives typically carry 2 years, NAS-class 3, and enterprise 5. A slightly higher price per TB with a 5-year warranty is often the better buy than the absolute cheapest offer.

Multi-packs sometimes top price-per-TB rankings. That's a real saving if you need the capacity — each entry notes when an offer is a multi-pack, so you're not surprised by four drives arriving instead of one.

FAQ

What is a good price per TB for an internal hard drive?

It moves with the market, which is why this page ranks live offers instead of quoting a number. As a rule of thumb, large-capacity drives (12TB and up) reach the lowest price per TB, and anything meaningfully below the typical price shown on each entry is a strong deal.

Is CMR or SMR better?

CMR is better for sustained or random write workloads (NAS, backups that rewrite, surveillance). SMR is acceptable for mostly-read archive use and is usually cheaper per TB.

Are renewed or used drives worth it?

They can be for secondary copies of data you already have backed up elsewhere. For a primary copy, the shorter effective life and reduced warranty usually outweigh the discount.

How fresh are these prices?

The snapshot refreshes on a daily schedule and every price shows its capture time. We never display prices older than 24 hours.