The WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver costs $0.0350/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 $0.0300/GB. WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty offers 14% better value per gigabyte as of March 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver 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?
WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver
Specification Comparison
| Spec | WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver | 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 | 4 TB | 4 TB |
| $/GB | $0.0350 | $0.0300 |
| Price | $139.99 | $119.99 |
| Retailer | Best Buy | Amazon |
| Category | Hard Drives & SSDs | Hard Drives & SSDs |
| 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 $0.0300//GB compared to the WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver at $0.0350//GB — that's roughly 14% 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 $119.99 at Amazon, while the WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver starts at $139.99 at Best Buy.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver 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 Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver 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 March 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 $0.0300//GB compared to WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver at $0.0350//GB. That is approximately 14% better value per gigabyte.
What is the price per GB of WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver?
The WD - My Passport Ultra 4TB External USB 3.0 Portable Hard Drive - Silver is currently priced at $0.0350/GB ($139.99 for 4 TB) at Best Buy.
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 $119.99 at Amazon, which works out to $0.0300/GB.