The Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) costs $0.0315/GB while the LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black costs $0.0761/GB. Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) offers 59% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) vs LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black — Which Is Better Value?
Specification Comparison
| Spec | Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) | LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black |
|---|---|---|
| Brand | Seagate | LaCie |
| Capacity | 20TB | 20TB |
| $/GB | $0.0315 | $0.0761 |
| Price | $630.00 | $1521.51 |
| Retailer | Newegg | 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 $0.0315//GB compared to the LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black at $0.0761//GB — that's roughly 59% 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 $630.00 at Newegg, while the LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black starts at $1521.51 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) and LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) or LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black a better deal?
As of July 2026, Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) offers better value at $0.0315//GB compared to LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black at $0.0761//GB. That is approximately 59% better value per gigabyte.
What is the price per GB of Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR)?
The Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) is currently priced at $0.0315/GB ($630.00 for 20TB) at Newegg.
Where can I buy LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black for the cheapest price?
The cheapest price for the LaCie 2big Dock 20TB USB 3.2 Gen 2 External Hard Drive Black is $1521.51 at Newegg, which works out to $0.0761/GB.