Buying now or waiting? Our hard drive price forecast sets out the live floor, the supply-side facts, and what would change the outlook.
Price per TB is the single most useful metric for buying storage. Take the purchase price, divide by the rated capacity in terabytes, and you have a fair comparison across every drive on the market. A 16TB drive at $12/TB ($192 total) beats a 4TB drive at $20/TB ($80 total) on $/TB economics — and beats it badly on lifetime cost when you factor in the power, the drive bay, and the future expansion you avoid by sizing up now. Unless you have a specific reason to buy a particular capacity (a 2-bay NAS, a single-drive backup, a regulatory constraint), always compare drives on $/TB rather than absolute price.
The table below is live. We track 100+ enterprise hard drives, NVMe SSDs, and LTO tape cartridges across new and refurbished channels, and we re-pull the prices from Amazon US every two hours. The cheapest drive at the top of this list is genuinely the cheapest storage per TB available right now — not the cheapest from a single vendor, not the cheapest in a single category, but the cheapest period. When that drive sells out or its price changes, the ranking updates automatically.
One change worth flagging in how to read this table: external USB drives now appear in it on merit, and they carry an EXTERNAL badge in the interface column so they are never mistaken for a bare drive. The enclosure premium that used to keep them out has closed, and on new listings an external desktop drive and a bare internal SATA drive now sit within a couple of percent of each other per terabyte. That is a genuinely different purchase at a similar rate: an external is a sealed unit that plugs into USB and whose internal drive the maker does not disclose, while a bare drive publishes its model number, recording technology, workload rating and warranty. If the storage is going into a bay or an array, the rate at the top of this table is not the one that matters — the best bare drive is. Every external we track is ranked separately, with the honest disclosure position stated in full.
The same caution applies at the other end of the table. The very cheapest rates here are frequently second-hand enterprise SAS drives at small capacities, and a SAS drive does not plug into an ordinary computer — it needs a host bus adapter and a machine with a slot for one. That is a small obstacle if you have a server and a decisive one if you do not, so read the interface column before reading the rate.
| # | $/TB | Drive | Cap | Interface | Cond | Total | |
|---|---|---|---|---|---|---|---|
| 1 | $14.00 | 4TB | SAS-6G | New | $56 | Buy | |
| 2 | $14.99 | 1TB | SAS-6G | REFURB | $15 | Buy | |
| 3 | $15.13 | 3TB | SAS-6G | REFURB | $45 | Buy | |
| 4 | $17.98 | 3TB | SAS-6G | REFURB | $54 | Buy | |
| 5 | $18.13 | 4TB | SAS-12G | REFURB | $73 | Buy | |
| 6 | $18.33 | 6TB | SAS-6G | REFURB | $110 | Buy | |
| 7 | $18.33 | 6TB | SAS-12G | REFURB | $110 | Buy | |
| 8 | $19.67 | 4TB | SAS-6G | New | $79 | Buy | |
| 9 | $20.00 | 3TB | SATA-6G | REFURB | $60 | Buy | |
| 10 | $20.00 | 4TB | SAS-12G | New | $80 | Buy | |
| 11 | $20.00 | 6TB | SAS-12G | REFURB | $120 | Buy | |
| 12 | $20.00 | 3TB | SAS-6G | REFURB | $60 | Buy | |
| 13 | $20.51 | 3TB | SAS-6G | REFURB | $62 | Buy | |
| 14 | $21.25 | 4TB | SAS-6G | REFURB | $85 | Buy | |
| 15 | $22.00 | 2TB | SAS-6G | REFURB | $44 | Buy | |
| 16 | $22.25 | 4TB | SATA-6G | REFURB | $89 | Buy | |
| 17 | $22.50 | 4TB | SAS-6G | REFURB | $90 | Buy | |
| 18 | $23.00 | 3TB | SAS-6G | New | $69 | Buy | |
| 19 | $23.50 | 10TB | SAS-12G | REFURB | $235 | Buy | |
| 20 | $23.50 | 14TB | SATA-6G | REFURB | $329 | Buy | |
| 21 | $23.57 | 14TB | SATA-6G | REFURB | $330 | Buy | |
| 22 | $25.00 | 10TB | SAS-12G | New | $250 | Buy | |
| 23 | $25.00 | 12TB | SATA-6G | REFURB | $300 | Buy | |
| 24 | $25.00 | 18TB | SATA-6G | REFURB | $450 | Buy | |
| 25 | $25.06 | 10TB | SAS-12G | REFURB | $251 | Buy | |
| 26 | $25.45 | 3.84TB | NVMe-PCIe4 | New | $98 | Buy | |
| 27 | $25.56 | 18TB | SATA-6G | REFURB | $460 | Buy | |
| 28 | $25.63 | 8TB | SAS-12G | REFURB | $205 | Buy | |
| 29 | $25.71 | 14TB | SAS-12G | REFURB | $360 | Buy | |
| 30 | $25.71 | 14TB | SATA-6G | REFURB | $360 | Buy | |
| 31 | $26.00 | 10TB | SATA-6G | REFURB | $260 | Buy | |
| 32 | $26.11 | 18TB | SATA-6G | REFURB | $470 | Buy | |
| 33 | $26.13 | 8TB | SATA-6G | REFURB | $209 | Buy | |
| 34 | $26.14 | 14TB | SATA-6G | REFURB | $366 | Buy | |
| 35 | $26.25 | 4TB | SATA-6G | REFURB | $105 | Buy | |
| 36 | $26.99 | 1TB | SAS-6G | REFURB | $27 | Buy | |
| 37 | $27.14 | 14TB | SATA-6G | REFURB | $380 | Buy | |
| 38 | $27.42 | 12TB | SAS-12G | REFURB | $329 | Buy | |
| 39 | $27.43 | 7.68TB | NVMe-PCIe4 | New | $211 | Buy | |
| 40 | $27.50 | 12TB | SATA-6G | REFURB | $330 | Buy | |
| 41 | $27.50 | 8TB | SAS-12G | REFURB | $220 | Buy | |
| 42 | $27.50 | 12TB | SATA-6G | REFURB | $330 | Buy | |
| 43 | $27.72 | 10TB | SAS-12G | REFURB | $277 | Buy | |
| 44 | $27.74 | 12TB | SAS-12G | REFURB | $333 | Buy | |
| 45 | $27.86 | 14TB | SATA-6G | REFURB | $390 | Buy | |
| 46 | $27.86 | 14TB | SATA-6G | REFURB | $390 | Buy | |
| 47 | $27.86 | 14TB | SATA-6G | REFURB | $390 | Buy | |
| 48 | $27.88 | 24TB | SATA-6G | REFURB | $669 | Buy | |
| 49 | $27.90 | 10TB | SAS-12G | REFURB | $279 | Buy | |
| 50 | $28.12 | 16TB | SATA-6G | REFURB | $450 | Buy |
If you need a specific drive size, this table shows the cheapest live $/TB at each HDD capacity tier.
| Capacity | Best $/TB | Drive | Total |
|---|---|---|---|
| 1TB → | $14.99 | HP ST31000640SS 1TB SAS | $15 |
| 1.2TB → | $33.33 | HP 781578-001 1.2TB 12G SAS 10K | $40 |
| 1.8TB → | $44.03 | Toshiba 1.8TB 10K SAS 12G 2.5 | $79 |
| 2TB → | $22.00 | Dell MG03SCA200 2TB SAS 6G | $44 |
| 3TB → | $15.13 | HGST HUS724030ALS640 3TB SAS 6G | $45 |
| 4TB → | $14.00 | HP 695842-001 4TB SAS 6G | $56 |
| 5TB | $55.00 | WD Easystore 5TB USB External | $275 |
| 6TB → | $18.33 | Dell NWCCG 6TB SAS 6G NL Renewed | $110 |
| 8TB → | $25.63 | Dell M40TH 8TB SAS 12G 512E | $205 |
| 10TB → | $23.50 | HGST Ultrastar He10 10TB SAS 12G | $235 |
| 12TB → | $25.00 | WD Ultrastar 12TB SATA HUH721212ALE604 | $300 |
| 14TB → | $23.50 | Toshiba MG07ACA14TE 14TB SATA Enterprise | $329 |
| 16TB → | $28.12 | Seagate IronWolf Pro 16TB NAS ST16000NE000 | $450 |
| 18TB → | $25.00 | MDD 18TB SATA 6G 7200RPM NAS | $450 |
| 20TB → | $31.00 | MDD 20TB SATA 7200RPM NAS | $620 |
| 22TB → | $29.55 | Seagate Exos X22 22TB | $650 |
| 24TB → | $27.88 | WD Ultrastar 24TB SATA WUH722424ALE604 | $669 |
| 26TB | $42.27 | WD Red Pro 26TB NAS WD260KFGX | $1099 |
| 30TB → | $40.00 | Seagate Exos M 30TB SATA HAMR Enterprise | $1200 |
| 32TB | $36.25 | Seagate SkyHawk AI 32TB ST32000VE000 | $1160 |
LTO tape offers the lowest raw $/TB of any storage medium but requires a dedicated tape drive ($2,000-4,000 for LTO-8/LTO-9) making it economical only at 50TB+ scale. Excluded from the main ranking above because it is not a drop-in alternative to an HDD or SSD. See the LTO tape tracker for full cartridge and library pricing.
| $/TB | Cartridge | Cap | Total | |
|---|---|---|---|---|
| $5.50 | HPELTO-9 Ultrium Single 18TB | 18TB | $99 | Buy |
| $5.83 | FujiLTO-8 Ultrium Single 12TB | 12TB | $70 | Buy |
| $10.00 | QuantumLTO-7 Ultrium Single 6TB | 6TB | $60 | Buy |
| $48.89 | FujiLTO-9 Ultrium 10-Pack 18TB | 18TB | $880 | Buy |
| $106.11 | QuantumLTO-9 Ultrium 20-Pack 18TB | 18TB | $1910 | Buy |
| $122.50 | QuantumLTO-8 Ultrium 20-Pack 12TB | 12TB | $1470 | Buy |
| $123.83 | IBMLTO-8 Tape 20-Pack 12TB | 12TB | $1486 | Buy |
Reference benchmarks for the 2026 market. New enterprise CMR hard drives like Seagate Exos and WD Ultrastar typically run $13-18/TB at 16-22TB capacity. Anything under $14/TB on a new drive is competitive. Refurbished datacenter pulls from established remarketers run $9-12/TB for the same capacity tier, sometimes dipping under $8/TB on lot deals.
The 14-20TB band is the current sweet spot for $/TB. Below 12TB, you're paying a premium for capacity tiers that the manufacturers no longer prioritize and that volume buyers ignore. Above 24TB, you're paying an early-adopter premium for the latest HAMR and SMR-CMR transitions. The sweet spot moves up over time — in 2024 it was 12-16TB; in 2028 it will likely be 24-30TB. Buy in the sweet spot for value; buy above it only if you need maximum density.
SSDs are not directly comparable to HDDs on pure $/TB. Enterprise NVMe SSDs in 2026 run $70-150/TB — five to ten times the cost of equivalent HDD capacity — but deliver dramatically higher IOPS, lower latency, and lower power per IOPS. The right mental model is tiered storage: NVMe for hot data where the IOPS matter, HDD for capacity tiers where they don't. The HP 695842-001 4TB SAS 6G at the top of this ranking is the right buy for capacity-tier workloads. For database workloads, look at the NVMe U.2 tracker instead.
Refurbished enterprise drives are datacenter pulls — drives removed from decommissioned hyperscale storage arrays, tested, graded, and resold by specialist remarketers like MDD MaxDigitalData. These are the same physical drives that ran in AWS or Microsoft Azure storage clusters, typically 3-5 years old with 25,000-45,000 power-on hours. They come with 3-5 year reseller warranties at 20-30% below new pricing. SMART-verify on arrival, deploy in RAID 6 with hot spares, and they deliver reliable service.
New drives carry the original manufacturer warranty (usually 5 years for enterprise), a fresh workload rating, and zero accumulated wear. The premium over refurbished narrows when you account for the cost of the reseller warranty replacement workflow and the longer protection on new drives. For primary production storage, database arrays, single-drive deployments, and anything where a correlated failure would be catastrophic, buy new. For backup repositories, secondary tiers, NAS capacity, and any RAID 6 deployment with hot spares, refurbished delivers meaningfully better TCO.
Prices sourced from Amazon US via the Amazon Creators API on a 2-hour refresh cycle. $/TB is calculated as the current lowest in-stock price divided by the drive's rated capacity. Only in-stock drives are included in this ranking. Refurbished listings are tagged with the REFURB badge.
For new enterprise CMR hard drives, anything under $14/TB is competitive in 2026. Refurbished datacenter pulls regularly trade under $10/TB. The 14-20TB capacity tier currently delivers the best $/TB in new drives. NVMe SSDs run 5-6x the cost per TB of HDDs and are not directly comparable on pure $/TB.
Hard drive manufacturing costs are largely fixed per unit — the controller, motor, head assembly, and chassis cost roughly the same whether the drive holds 4TB or 20TB. Spreading that fixed cost over more capacity drops the $/TB. Higher-capacity drives also use the latest areal density technology, which improves over time.
Yes for appropriate use cases. Refurbished enterprise drives from established resellers like MDD come from decommissioned hyperscale datacenters with 3-5 year warranties at 20-30% below new pricing. SMART-verify on arrival and deploy in RAID 6 or better. Avoid refurb for single-drive deployments without redundancy.
Almost always one big drive. A 20TB drive at $13/TB ($260) is cheaper than five 4TB drives at $20/TB ($400) — both in $/TB and total cost. Larger drives also use less power, fewer drive bays, and have fewer failure points. Choose smaller drives only if your enclosure limits capacity per bay.
Prices on DatacenterDisk refresh every 2 hours from Amazon US via the Amazon Creators API. The freshness indicator near the top of every page shows the most recent successful refresh.
At scale, refurbished enterprise SATA HDDs at 18-20TB capacity yield the lowest $/TB and therefore the cheapest per-TB way to expand storage. For a single 1TB deployment, an external USB drive is cheaper than a bare 1TB internal but offers no expansion path.
Yes, dramatically. As of 2026, enterprise NVMe SSDs cost approximately 8-16x the per-TB price of equivalent capacity HDDs. The gap widened in 2025 as NAND flash manufacturers shifted production capacity toward High Bandwidth Memory for AI accelerators. Use NVMe for hot data and HDD for capacity tier.
Storage analysts generally recommend purchasing current requirements rather than deferring in the 2026 market. AI infrastructure demand is keeping HDD supply tight; tariff exposure adds cost; and NAND shortages affecting NVMe and indirectly HDD are not expected to resolve before 2027. Buy the drive you need at today's price.