The Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) costs $0.0279/GB while the Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) costs $0.0450/GB. Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) offers 38% 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 Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) — Which Is Better Value?
Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB)
Specification Comparison
| Spec | Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) | Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) |
|---|---|---|
| Brand | Seagate | Glyph Production Technologies |
| Capacity | 20TB | 20 TB |
| $/GB | $0.0279 | $0.0450 |
| Price | $559.00 | $899.99 |
| Retailer | Newegg | Amazon |
| 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 $0.0279//GB compared to the Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) at $0.0450//GB — that's roughly 38% 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 $559.00 at Newegg, while the Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) starts at $899.99 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 Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) and Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) 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 Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) 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 $0.0279//GB compared to Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) at $0.0450//GB. That is approximately 38% 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 $0.0279/GB ($559.00 for 20TB) at Newegg.
Where can I buy Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) for the cheapest price?
The cheapest price for the Glyph BlackBox Pro External Hard Drive 7200 RPM, USB-C (3.1,Gen2) (20TB) is $899.99 at Amazon, which works out to $0.0450/GB.