The Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM costs $0.0337/GB while the Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 costs $0.0506/GB. Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM offers 33% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM vs Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 — Which Is Better Value?
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Specification Comparison
| Spec | Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM | Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 |
|---|---|---|
| Brand | Seagate | Seagate |
| Capacity | 16TB | 16TB |
| $/GB | $0.0337 | $0.0506 |
| Price | $539.99 | $808.99 |
| 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 Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM offers better value at $0.0337//GB compared to the Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 at $0.0506//GB — that's roughly 33% less per gigabyte.
The best deal for the Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM is $539.99 at Newegg, while the Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 starts at $808.99 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 IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM and Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM or Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 a better deal?
As of August 2026, Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM offers better value at $0.0337//GB compared to Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 at $0.0506//GB. That is approximately 33% better value per gigabyte.
What is the price per GB of Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM?
The Seagate IronWolf Pro ST16000NT001 16TB 7200 RPM 256MB Cache 3.5' Internal Hard Drive - OEM is currently priced at $0.0337/GB ($539.99 for 16TB) at Newegg.
Where can I buy Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 for the cheapest price?
The cheapest price for the Seagate Expansion Desktop 16TB External Hard Drive HDD - USB 3.0 - STKP16000400 is $808.99 at Newegg, which works out to $0.0506/GB.