The Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) costs $0.0322/GB while the Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) costs $0.0278/GB. Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) offers 14% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.

Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) vs Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) — Which Is Better Value?

Specification Comparison

SpecSeagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400)
BrandSeagateSeagate
Capacity8 TB8 TB
$/GB$0.0322$0.0278
Price$257.83$222.80
RetailerAmazonAmazon
CategoryHard Drives (HDD)Hard Drives (HDD)
Subcategoryhddhdd

Price Across Retailers

Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)

Amazon$0.0322//GB
$257.83Buy

Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400)

Amazon$0.0278//GB
$222.80Buy

Which Should You Buy?

Based on current pricing data, the Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) offers better value at $0.0278//GB compared to the Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) at $0.0322//GB — that's roughly 14% less per gigabyte.

The best deal for the Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) is $222.80 at Amazon, while the Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) starts at $257.83 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 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) and Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) product page for detailed specifications and price history.

Frequently Asked Questions

Is Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) or Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) a better deal?

As of June 2026, Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) offers better value at $0.0278//GB compared to Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) at $0.0322//GB. That is approximately 14% better value per gigabyte.

What is the price per GB of Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)?

The Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) is currently priced at $0.0322/GB ($257.83 for 8 TB) at Amazon.

Where can I buy Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) for the cheapest price?

The cheapest price for the Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) is $222.80 at Amazon, which works out to $0.0278/GB.

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