6TB hard drives: compare prices and CMR NAS choices
Find recently checked 6TB internal HDD offers. For a NAS, match the exact drive model and interface before choosing by price.
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10 offers by price per TB
See all 88 listingsWe found 88 recently priced 6TB Hard Drives, showing the top 10 by price per TB. Prices start at $159.99, with the lowest price per TB currently at $26.67/TB.
| # | Product | Capacity | Condition | Price / TB | Price | Region | |
|---|---|---|---|---|---|---|---|
| 1 |
HGST, a Western Digital Company Ultrastar 7K6000 6000GB 7200RPM SATA 512E Ultra ISE 128MB Cache 3.5-Inch Internal Bare or OEM Drives 0F23001
Internal 3.5"HDD
Listed warranty: 60 months · verify seller
Price checked Oct 27, 2026 18:11 UTC
|
6 TB | New | $26.67 /TB | $159.99 | us | Amazon ↗ |
| 2 |
HGST Ultrastar He8 Helium 6TB 3.5-Inch 7200RPM SATA ULTRA 512e SE 128MB Cache Internal Bare or OEM Hard Drive - HUH728060ALE604 / 0F23669
Internal 3.5"HDD
Listed warranty: 60 months · verify seller
Price checked Oct 27, 2026 18:11 UTC
|
6 TB | New | $27.33 /TB | $164.00 | us | Amazon ↗ |
| 3 |
Seagate ST6000NM0024 6TB 7.2K SATA 3.5" HDD
3.5"HDD
Price checked Oct 27, 2026 18:09 UTC
|
6 TB | New | $28.16 /TB | $168.95 | us | Amazon ↗ |
| 4 |
Seagate ST6000NM0095 6 TB 3.5in Internal Hard Drive (Renewed)
Check form factorHDD
Listed warranty: 3 months · verify seller
Price checked Oct 27, 2026 22:22 UTC
|
6 TB | Used / renewed | $29.83 /TB | $179.00 | us | Amazon ↗ |
| 5 |
Western Digital 6TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60PURZ
3.5"HDD
Price checked Oct 27, 2026 22:23 UTC
|
6 TB | Used / renewed | $30.00 /TB | $179.99 | us | Amazon ↗ |
| 6 |
HGST HUS726060ALA640 Ultrastar He6 (Helium Platform) 6TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5inch Internal Enterprise Hard Drive - 3 Years Warranty (Renewed)
Internal 3.5"HDD
Listed warranty: 36 months · verify seller
Price checked Oct 27, 2026 18:12 UTC
|
6 TB | Used / renewed | $30.00 /TB | $179.99 | us | Amazon ↗ |
| 7 |
Seagate Exos 7E8 6TB 512e SATA 256MB Cache 3.5-Inch Enterprise Hard Drive - Frustration Free Packaging (ST6000NM0115) (Renewed)
3.5"HDD
Listed warranty: 3 months · verify seller
Price checked Oct 27, 2026 22:26 UTC
|
6 TB | Used / renewed | $30.00 /TB | $179.99 | us | Amazon ↗ |
| 8 |
Seagate Exos 7E8 ST6000NM021A 6 TB Hard Drive - Internal - SATA (SATA/600) (Renewed)
Check form factorHDD
Price checked Oct 27, 2026 18:12 UTC
|
6 TB | Used / renewed | $31.50 /TB | $188.99 | us | Amazon ↗ |
| 9 |
HGST Ultrastar 6TB 3.5inch 128MB Cache 7200RPM SATA 6.0Gb/s Internal Enterprise Hard Drive - HUS726060ALE614 (For Desktop PC/Mac, NAS, CCTV DVR, Surveillance System, RAID, Server) (Renewed)
Internal 3.5"HDD
Listed warranty: 3 months · verify seller
Price checked Oct 27, 2026 18:12 UTC
|
6 TB | Used / renewed | $31.58 /TB | $189.50 | us | Amazon ↗ |
| 10 |
HGST Ultrastar 7K6000 HUS726060ALE610 0F23001 6TB 7200 RPM SATA 3.5" 512E ISE 128MB Cache Enterprise Hard Drive
Internal 3.5"HDD
Price checked Oct 27, 2026 18:11 UTC
|
6 TB | New | $31.67 /TB | $189.99 | us | Amazon ↗ |
Amazon US · exact models
Compare the hardware behind the price
New listing
Seagate IronWolf
ST6000VN006 · 6TBCMR SATA NAS model. Check the enclosure compatibility list and the selected seller’s condition, warranty and returns.
$420.79$70.13/TB
View new offer on Amazon ↗ Checked Oct 27, 2026 22:22 UTC. Amazon's price and availability at purchase apply.New listing
Western Digital WD Red Plus
WD60EFPX · 6TBCMR SATA NAS model. Check the enclosure compatibility list and the selected seller’s condition, warranty and returns.
$289.99$48.33/TB
View new offer on Amazon ↗ Checked Oct 27, 2026 22:23 UTC. Amazon's price and availability at purchase apply.What to Check Before Buying a 6TB Hard Drive
Use the full part number to verify recording method and specifications. Closely named drives can differ in recording technology, RPM and workload limits.
Two 6TB drives mirrored provide 6TB before overhead, about 5.5TiB in binary units. Compare 8TB options before filling your final free bay.
For an existing pool, follow the NAS vendor’s replacement procedure and size requirements. A larger replacement may not immediately increase the pool’s usable space.
Check whether warranty comes from the manufacturer or seller, especially for OEM and renewed offers. An eligible-new-drive specification does not establish coverage for every listing.
Frequently Asked Questions
Are all 6TB NAS hard drives CMR?
Is 6TB or 8TB better value?
How much space do two 6TB NAS drives provide?
Can I replace a smaller NAS drive with a 6TB HDD?
Sources and further reading
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