The WD - Blue 4TB PC Internal Hard Drive for Desktops costs $0.0325/GB while the UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) costs $0.0679/GB. WD - Blue 4TB PC Internal Hard Drive for Desktops offers 52% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD - Blue 4TB PC Internal Hard Drive for Desktops vs UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) — Which Is Better Value?
WD - Blue 4TB PC Internal Hard Drive for Desktops
Specification Comparison
| Spec | WD - Blue 4TB PC Internal Hard Drive for Desktops | UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) |
|---|---|---|
| Brand | Western Digital | UnionSine |
| Capacity | 4 TB | 500 GB |
| $/GB | $0.0325 | $0.0679 |
| Price | $129.99 | $33.94 |
| 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 WD - Blue 4TB PC Internal Hard Drive for Desktops offers better value at $0.0325//GB compared to the UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) at $0.0679//GB — that's roughly 52% less per gigabyte.
The best deal for the WD - Blue 4TB PC Internal Hard Drive for Desktops is $129.99 at Best Buy, while the UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) starts at $33.94 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD - Blue 4TB PC Internal Hard Drive for Desktops and UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) product page for detailed specifications and price history.
Frequently Asked Questions
Is WD - Blue 4TB PC Internal Hard Drive for Desktops or UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) a better deal?
As of May 2026, WD - Blue 4TB PC Internal Hard Drive for Desktops offers better value at $0.0325//GB compared to UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) at $0.0679//GB. That is approximately 52% better value per gigabyte.
What is the price per GB of WD - Blue 4TB PC Internal Hard Drive for Desktops?
The WD - Blue 4TB PC Internal Hard Drive for Desktops is currently priced at $0.0325/GB ($129.99 for 4 TB) at Best Buy.
Where can I buy UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) for the cheapest price?
The cheapest price for the UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) is $33.94 at Amazon, which works out to $0.0679/GB.