The Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX costs $0.0525/GB while the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black costs $0.0375/GB. WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black offers 29% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX 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 | Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX | WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black |
|---|---|---|
| Brand | Western Digital | Western Digital |
| Capacity | 6 TB | 6 TB |
| $/GB | $0.0525 | $0.0375 |
| Price | $314.99 | $224.99 |
| Retailer | Amazon | Best Buy |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black offers better value at $0.0375//GB compared to the Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX at $0.0525//GB — that's roughly 29% less per gigabyte.
The best deal for the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black is $224.99 at Best Buy, while the Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX starts at $314.99 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX 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 Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX or WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black a better deal?
As of June 2026, WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black offers better value at $0.0375//GB compared to Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX at $0.0525//GB. That is approximately 29% better value per gigabyte.
What is the price per GB of Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX?
The Western Digital 6TB WD_Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6004FZBX is currently priced at $0.0525/GB ($314.99 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 $224.99 at Best Buy, which works out to $0.0375/GB.