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 while the 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive costs $0.0730/GB. WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty offers 55% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty vs 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive — Which Is Better Value?
Specification Comparison
| Spec | WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty | 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive |
|---|---|---|
| Brand | GoHardDrive | |
| Capacity | 4 TB | 1TB |
| $/GB | $0.0325 | $0.0730 |
| Price | $129.99 | $73.01 |
| Retailer | Amazon | Newegg |
| 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 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive at $0.0730//GB — that's roughly 55% 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 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive starts at $73.01 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty and 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty or 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive a better deal?
As of May 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 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive at $0.0730//GB. That is approximately 55% better value per gigabyte.
What is the price per GB of WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty?
The WL 4TB 64MB Cache 5400RPM SATA III (6.0Gb/s) 3.5" Internal Surveillance DVR Hard Drive - w/ 1 Year Warranty is currently priced at $0.0325/GB ($129.99 for 4 TB) at Amazon.
Where can I buy 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive for the cheapest price?
The cheapest price for the 81Y9731 81Y9730 1T 7.2K SATA 2.5 M3 M4 1TB Hard Drive is $73.01 at Newegg, which works out to $0.0730/GB.