The WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) costs $0.0625/GB while the WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty costs $0.0325/GB. WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty offers 48% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) vs WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty — Which Is Better Value?
Specification Comparison
| Spec | WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) | WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty |
|---|---|---|
| Brand | Western Digital | GoHardDrive |
| Capacity | 4TB | 4 TB |
| $/GB | $0.0625 | $0.0325 |
| Price | $249.99 | $129.99 |
| 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 WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty offers better value at $0.0325//GB compared to the WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) at $0.0625//GB — that's roughly 48% less per gigabyte.
The best deal for the WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty is $129.99 at Amazon, while the WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) starts at $249.99 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 My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) and WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty product page for detailed specifications and price history.
Frequently Asked Questions
Is WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) or WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty a better deal?
As of June 2026, WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty offers better value at $0.0325//GB compared to WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) at $0.0625//GB. That is approximately 48% better value per gigabyte.
What is the price per GB of WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN)?
The WD My Book 4TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0040HBK-NESN) is currently priced at $0.0625/GB ($249.99 for 4TB) at Newegg.
Where can I buy WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty for the cheapest price?
The cheapest price for the WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty is $129.99 at Amazon, which works out to $0.0325/GB.