The WD - Blue 4TB PC Internal Hard Drive for Desktops costs $0.0325/GB while the Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one costs $0.1832/GB. WD - Blue 4TB PC Internal Hard Drive for Desktops offers 82% 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 Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one — 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 | Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one |
|---|---|---|
| Brand | Western Digital | Tianken |
| Capacity | 4 TB | 120 GB |
| $/GB | $0.0325 | $0.1832 |
| Price | $129.99 | $21.99 |
| 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 WD - Blue 4TB PC Internal Hard Drive for Desktops offers better value at $0.0325//GB compared to the Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one at $0.1832//GB — that's roughly 82% 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 Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one starts at $21.99 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD - Blue 4TB PC Internal Hard Drive for Desktops and Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one product page for detailed specifications and price history.
Frequently Asked Questions
Is WD - Blue 4TB PC Internal Hard Drive for Desktops or Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one 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 Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one at $0.1832//GB. That is approximately 82% 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 Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one for the cheapest price?
The cheapest price for the Tianken 120GB Ultra Slim Portable External Hard Drive USB 3.1 Type C HDD Storage for PC, Mac, Laptop, PS4, Xbox one is $21.99 at Amazon, which works out to $0.1832/GB.