The Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB costs $0.0446/GB while the Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) costs $0.0375/GB. Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) offers 16% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB vs Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) — Which Is Better Value?
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Specification Comparison
| Spec | Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB | Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) |
|---|---|---|
| Brand | Seagate | Synology |
| Capacity | 28TB | 20TB |
| $/GB | $0.0446 | $0.0375 |
| Price | $1249.99 | $749.99 |
| 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 Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) offers better value at $0.0375//GB compared to the Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB at $0.0446//GB — that's roughly 16% less per gigabyte.
The best deal for the Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) is $749.99 at Newegg, while the Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB starts at $1249.99 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 M 3.5' SATA III Internal Hard Drive - 28TB and Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB or Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) a better deal?
As of September 2026, Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) offers better value at $0.0375//GB compared to Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB at $0.0446//GB. That is approximately 16% better value per gigabyte.
What is the price per GB of Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB?
The Seagate Exos M 3.5' SATA III Internal Hard Drive - 28TB is currently priced at $0.0446/GB ($1249.99 for 28TB) at Newegg.
Where can I buy Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) for the cheapest price?
The cheapest price for the Synology 20TB HAT3320 Plus Series SATA III 3.5' Internal NAS HDD ( HAT3320-20T) is $749.99 at Newegg, which works out to $0.0375/GB.