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 $0.0300/GB while the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black costs $0.0308/GB. 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) offers 3% better value per gigabyte as of March 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 WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black — Which Is Better Value?
WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black
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) | WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 6 TB | 6 TB |
| $/GB | $0.0300 | $0.0308 |
| Price | $179.99 | $184.99 |
| Retailer | Amazon | Best Buy |
| Category | Hard Drives & SSDs | Hard Drives & SSDs |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, 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) offers better value at $0.0300//GB compared to the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black at $0.0308//GB — that's roughly 3% less per gigabyte.
The best deal for 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 $179.99 at Amazon, while the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black starts at $184.99 at Best Buy.
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 WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black 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 WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black a better deal?
As of March 2026, 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) offers better value at $0.0300//GB compared to WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black at $0.0308//GB. That is approximately 3% 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 $0.0300/GB ($179.99 for 6 TB) at Amazon.
Where can I buy WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black for the cheapest price?
The cheapest price for the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black is $184.99 at Best Buy, which works out to $0.0308/GB.