The WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver costs $0.0450/GB while the Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX costs $0.0325/GB. Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX offers 28% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver vs Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX — Which Is Better Value?
WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver
Specification Comparison
| Spec | WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver | Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX |
|---|---|---|
| Brand | Western Digital | Western Digital |
| Capacity | 4 TB | 4 TB |
| $/GB | $0.0450 | $0.0325 |
| Price | $179.99 | $129.99 |
| Retailer | Best Buy | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX offers better value at $0.0325//GB compared to the WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver at $0.0450//GB — that's roughly 28% less per gigabyte.
The best deal for the Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX is $129.99 at Amazon, while the WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver starts at $179.99 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 WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver and Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX product page for detailed specifications and price history.
Frequently Asked Questions
Is WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver or Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX a better deal?
As of May 2026, Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX offers better value at $0.0325//GB compared to WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver at $0.0450//GB. That is approximately 28% better value per gigabyte.
What is the price per GB of WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver?
The WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver is currently priced at $0.0450/GB ($179.99 for 4 TB) at Best Buy.
Where can I buy Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX for the cheapest price?
The cheapest price for the Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 128 MB Cache, 3.5" - WD40EZZX is $129.99 at Amazon, which works out to $0.0325/GB.