The Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 costs $0.0326/GB while the Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) costs $0.0394/GB. Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 offers 17% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 vs Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) — Which Is Better Value?
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Specification Comparison
| Spec | Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 | Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) |
|---|---|---|
| Brand | Seagate | Seagate |
| Capacity | 16 TB | 16TB |
| $/GB | $0.0326 | $0.0394 |
| Price | $521.99 | $631.00 |
| Retailer | Amazon | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400
Which Should You Buy?
Based on current pricing data, the Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 offers better value at $0.0326//GB compared to the Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) at $0.0394//GB — that's roughly 17% less per gigabyte.
The best deal for the Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 is $521.99 at Amazon, while the Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) starts at $631.00 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 Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 and Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 or Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) a better deal?
As of August 2026, Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 offers better value at $0.0326//GB compared to Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) at $0.0394//GB. That is approximately 17% better value per gigabyte.
What is the price per GB of Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400?
The Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400 is currently priced at $0.0326/GB ($521.99 for 16 TB) at Amazon.
Where can I buy Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) for the cheapest price?
The cheapest price for the Seagate IronWolf Pro ST16000NE000 16 TB Hard Drive - 3.5' Internal - SATA (SATA/600) (ST16000NE000) is $631.00 at Newegg, which works out to $0.0394/GB.