The WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN costs $0.0347/GB while the Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) costs $0.0408/GB. WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN offers 15% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN vs Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) — Which Is Better Value?
Specification Comparison
| Spec | WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN | Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 4TB | 4 TB |
| $/GB | $0.0347 | $0.0408 |
| Price | $138.99 | $163.21 |
| Retailer | Newegg | 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 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN offers better value at $0.0347//GB compared to the Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) at $0.0408//GB — that's roughly 15% less per gigabyte.
The best deal for the WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN is $138.99 at Newegg, while the Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) starts at $163.21 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 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN and Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) product page for detailed specifications and price history.
Frequently Asked Questions
Is WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN or Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) a better deal?
As of July 2026, WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN offers better value at $0.0347//GB compared to Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) at $0.0408//GB. That is approximately 15% better value per gigabyte.
What is the price per GB of WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN?
The WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN is currently priced at $0.0347/GB ($138.99 for 4TB) at Newegg.
Where can I buy Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) for the cheapest price?
The cheapest price for the Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0 (STKP4000400) is $163.21 at Amazon, which works out to $0.0408/GB.