The Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) costs $0.0333/GB while the Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) costs $0.0313/GB. Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) offers 6% better value per gigabyte as of April 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) vs Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) — Which Is Better Value?
Specification Comparison
| Spec | Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) | Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) |
|---|---|---|
| Brand | Seagate | Seagate |
| Capacity | 6 TB | 6 TB |
| $/GB | $0.0333 | $0.0313 |
| Price | $199.99 | $187.99 |
| Retailer | Amazon | Amazon |
| Category | Hard Drives & SSDs | Hard Drives & SSDs |
| Subcategory | hdd | hdd |
Price Across Retailers
Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03)
Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400)
Which Should You Buy?
Based on current pricing data, the Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) offers better value at $0.0313//GB compared to the Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) at $0.0333//GB — that's roughly 6% less per gigabyte.
The best deal for the Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) is $187.99 at Amazon, while the Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) starts at $199.99 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 BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) and Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) or Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) a better deal?
As of April 2026, Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) offers better value at $0.0313//GB compared to Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) at $0.0333//GB. That is approximately 6% better value per gigabyte.
What is the price per GB of Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03)?
The Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) is currently priced at $0.0333/GB ($199.99 for 6 TB) at Amazon.
Where can I buy Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) for the cheapest price?
The cheapest price for the Seagate Expansion 6TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP6000400) is $187.99 at Amazon, which works out to $0.0313/GB.