The Seagate - Barracuda 4TB Internal Hard Drive for Desktops costs $0.0375/GB while the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ costs $0.0324/GB. Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers 13% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate - Barracuda 4TB Internal Hard Drive for Desktops vs Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ — Which Is Better Value?
Specification Comparison
| Spec | Seagate - Barracuda 4TB Internal Hard Drive for Desktops | Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 4 TB | 4 TB |
| $/GB | $0.0375 | $0.0324 |
| Price | $149.99 | $129.77 |
| Retailer | Best Buy | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers better value at $0.0324//GB compared to the Seagate - Barracuda 4TB Internal Hard Drive for Desktops at $0.0375//GB — that's roughly 13% less per gigabyte.
The best deal for the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ is $129.77 at Amazon, while the Seagate - Barracuda 4TB Internal Hard Drive for Desktops starts at $149.99 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 Seagate - Barracuda 4TB Internal Hard Drive for Desktops and Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate - Barracuda 4TB Internal Hard Drive for Desktops or Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ a better deal?
As of May 2026, Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers better value at $0.0324//GB compared to Seagate - Barracuda 4TB Internal Hard Drive for Desktops at $0.0375//GB. That is approximately 13% better value per gigabyte.
What is the price per GB of Seagate - Barracuda 4TB Internal Hard Drive for Desktops?
The Seagate - Barracuda 4TB Internal Hard Drive for Desktops is currently priced at $0.0375/GB ($149.99 for 4 TB) at Best Buy.
Where can I buy Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ for the cheapest price?
The cheapest price for the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ is $129.77 at Amazon, which works out to $0.0324/GB.