The Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) costs $0.0718/GB while the Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) costs $0.0319/GB. Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) offers 56% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) vs Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) — Which Is Better Value?
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Specification Comparison
| Spec | Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) | Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) |
|---|---|---|
| Brand | Seagate | Seagate |
| Capacity | 20 TB | 20TB |
| $/GB | $0.0718 | $0.0319 |
| Price | $1436.99 | $639.00 |
| Retailer | Amazon | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) offers better value at $0.0319//GB compared to the Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) at $0.0718//GB — that's roughly 56% less per gigabyte.
The best deal for the Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) is $639.00 at Newegg, while the Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) starts at $1436.99 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) and Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) or Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) a better deal?
As of September 2026, Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) offers better value at $0.0319//GB compared to Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) at $0.0718//GB. That is approximately 56% better value per gigabyte.
What is the price per GB of Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400)?
The Seagate LaCie 2big Dock 20TB External HDD - Thunderbolt and USB4 Compatibility, Data Recovery (STLG20000400) is currently priced at $0.0718/GB ($1436.99 for 20 TB) at Amazon.
Where can I buy Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) for the cheapest price?
The cheapest price for the Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) is $639.00 at Newegg, which works out to $0.0319/GB.