The WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN costs $0.0347/GB while the WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) costs $0.0744/GB. WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN offers 53% 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 WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) — Which Is Better Value?
Specification Comparison
| Spec | WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN | WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) |
|---|---|---|
| Brand | Western Digital | Western Digital |
| Capacity | 4TB | 4TB |
| $/GB | $0.0347 | $0.0744 |
| Price | $138.99 | $297.52 |
| Retailer | Newegg | Newegg |
| 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 WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) at $0.0744//GB — that's roughly 53% 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 WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) starts at $297.52 at Newegg.
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 WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) 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 WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) 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 WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) at $0.0744//GB. That is approximately 53% 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 WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) for the cheapest price?
The cheapest price for the WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) is $297.52 at Newegg, which works out to $0.0744/GB.