The WD Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive costs $0.1199/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 73% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive 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 Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive | 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 | $0.1199 | $0.0325 |
| Price | $479.63 | $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 Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive at $0.1199//GB — that's roughly 73% 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 Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive starts at $479.63 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 Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive 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 Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive 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 Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive at $0.1199//GB. That is approximately 73% better value per gigabyte.
What is the price per GB of WD Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive?
The WD Purple WD42PURZ 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Surveillance Hard Drive is currently priced at $0.1199/GB ($479.63 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.