The Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) costs $0.0300/GB while the WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP costs $0.0465/GB. Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) offers 36% better value per gigabyte as of September 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 WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP — Which Is Better Value?
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Specification Comparison
| Spec | Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) | WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 20TB | 26TB |
| $/GB | $0.0300 | $0.0465 |
| Price | $599.00 | $1209.90 |
| 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 $0.0300//GB compared to the WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP at $0.0465//GB — that's roughly 36% 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 $599.00 at Newegg, while the WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP starts at $1209.90 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 WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP 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 WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP 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 $0.0300//GB compared to WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP at $0.0465//GB. That is approximately 36% 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 $0.0300/GB ($599.00 for 20TB) at Newegg.
Where can I buy WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP for the cheapest price?
The cheapest price for the WD Purple Pro 26TB 3.5' Surveillance Internal Hard Drive HDD - SATA 6 Gb/s - 512 MB Cache - WD260PURP is $1209.90 at Newegg, which works out to $0.0465/GB.