7 drives tracked from $43.59/TB. Prices updated about once a day.
1TB costs $43.59/TB right now against $22.22/TB at 18TB, today's best-value capacity - a 96% premium per terabyte. See the full value-frontier curve for the arithmetic, including when the premium is still the right buy for a fixed bay count.
| Buy | Details | ||||||
|---|---|---|---|---|---|---|---|
| $43.59 Lowest $/TB | Seagate BarraCuda 1TB ST1000DM010 ST1000DM010 | 1TB SATA-6G | Not sourced | $43.59 | Refurb | Buy on Amazon | |
Part number:ST1000DM010 RPM:— Cache:— Sector:— Workload:— DWPD:— Form factor:3.5" Series:BarraCuda ASIN:B0767D1BZY Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by Multi-Com Computers (All Serial Numbers Recorded) · Amazon says Used / LikeNew | |||||||
| $88.39 ~ 30d avg | WD Purple 1TB WD10PURX WD10PURX | 1TB SATA-6G | Not sourced | $88.39 | Refurb | Buy on Amazon | |
Part number:WD10PURX RPM:— Cache:— Sector:— Workload:— DWPD:— Form factor:3.5" Series:WD Purple ASIN:B00IMPO5VU Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by Multi-Com Computers (All Serial Numbers Recorded) · Amazon says Used / LikeNew | |||||||
| $93.00 ~ 30d avg | WD Red Legacy 1TB WD10EFRX WD10EFRX | 1TB SATA-6G | Not sourced | $93.00 | Refurb | Buy on Amazon | |
Part number:WD10EFRX RPM:— Cache:— Sector:— Workload:— DWPD:— Form factor:3.5" Series:WD Red Legacy ASIN:B008JJLXO6 Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by Tech Original · Amazon says Used / LikeNew | |||||||
| $99.99 ~ 30d avg | Seagate BarraCuda 1TB ST1000DM010 ST1000DM010 | 1TB SATA-6G | Not sourced | $99.99 | New | Buy on Amazon | |
Part number:ST1000DM010 RPM:— Cache:— Sector:— Workload:— DWPD:— Form factor:3.5" Series:BarraCuda ASIN:B0767D1BZY This offer, in its own words (the seller's note is verbatim): This offer: sold by TechnoDealsUSA · Amazon says New / Unknown · TechnoDealsUSA's note: x | |||||||
| $154.00 ~ 30d avg | WD Purple 1TB WD10PURX WD10PURX | 1TB SATA-6G | Not sourced | $154.00 | New | Buy on Amazon | |
Part number:WD10PURX RPM:— Cache:— Sector:— Workload:— DWPD:— Form factor:3.5" Series:WD Purple ASIN:B00IMPO5VU Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by Dealforless · Amazon says New / Unknown | |||||||
| $165.99 ~ 30d avg | WD Purple 1TB WD11PURZ WD11PURZ | 1TB SATA-6G | CMR | $165.99 | New | Buy on Amazon | |
Part number:WD11PURZ RPM:— Cache:— Sector:— Workload:180TB/yr DWPD:— Form factor:3.5" Series:WD Purple ASIN:B0CD2X2MTW This offer, in its own words (the seller's note is verbatim): This offer: sold by MobileMonster · Amazon says New / Unknown | |||||||
| $170.00 ~ 30d avg | WD Red Legacy 1TB WD10EFRX WD10EFRX | 1TB SATA-6G | Not sourced | $170.00 | New | Buy on Amazon | |
Part number:WD10EFRX RPM:— Cache:— Sector:— Workload:— DWPD:— Form factor:3.5" Series:WD Red Legacy ASIN:B008JJLXO6 Warranty:not stated by a source This offer, in its own words (the seller's note is verbatim): This offer: sold by Dealforless · Amazon says New / Unknown | |||||||
Guides for this capacity: barracuda 1tb for ps4 · barracuda 1tb for gaming · barracuda 1tb as boot drive · barracuda 1tb for nas · barracuda 1tb for xbox · barracuda 1tb for laptop · wd blue 1tb for nas · is 1tb hdd worth it 2026 · the HDD price forecast · fill a NAS at today's prices
Every listing we track at this size - 6 product pages, including ones with no current offer. Out-of-stock pages carry specs and in-stock alternatives, never a stale price.
One 1TB SATA hard drive, in decimal units (1TB = 1,000GB), before file-system and RAID overhead. Each line is a division you can redo; the per-file sizes are our assumptions and say so.
Security cameras, recording continuously: 28 camera-days - 8 cameras for 3 days. The arithmetic: 3.2 Mbps ÷ 8 = 0.4 MB/s × 86,400 s = 34.56 GB per camera-day; 1,000 GB ÷ 34.56 = 28 camera-days. The bitrate is WD's reference figure for one stream (single stream, 1080p, h.265, 25fps), from WD Purple / WD Purple Pro data sheets (footnote 3); the 8-camera count is our example. A camera set to a higher bitrate fills the drive proportionally faster.
Small-capacity SATA enterprise drives are often available as refurb datacenter pulls at rock-bottom prices. Check seller ratings and SMART data on arrival.
2-4TB external drives rarely contain enterprise mechanisms. At this capacity, buying bare enterprise drives is usually cheaper than shucking.
Perfect for home NAS builds, media servers, and development environments. At these capacities even consumer-grade is adequate, but enterprise CMR ensures RAID safety.
If you need IOPS over capacity, consider 10K SAS 2.5" drives instead. For pure storage, 7.2K SATA at 2-4TB is the cheapest entry point.
7 in-stock listings out of 7 tracked; the cheapest is the Seagate BarraCuda 1TB ST1000DM010 at $43.59 ($43.59/TB). The table on this page is the live ranking.
Both are in stock: 4 new and 3 recertified or used. The cheapest new is the Seagate BarraCuda 1TB ST1000DM010 at $99.99, the cheapest recertified or used the Seagate BarraCuda 1TB ST1000DM010 at $43.59 - a 56% shelf gap between two different models, not a like-for-like discount. New carries the manufacturer's warranty; recertified a reseller's.
1 of the 7 tracked listings carry a manufacturer-sourced conventional (CMR/ePMR) recording value, including the WD WD Purple 1TB WD11PURZ. 6 are not sourced either way - an unsourced drive is never assumed CMR here.
Seagate, WD - that is what has live or recently-live listings, not the manufacturers' full line-ups.
Monthly average of every listing tracked that month, new and used together. A level, not a price change: it moves when the mix of listings changes.
Get emailed when 1TB SATA drops below your target $/TB.
SATA enterprise HDDs offer the best $/TB for bulk nearline storage, backup targets and cold archive tiers.