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 while the 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping costs $0.1168/GB. Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers 72% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ vs 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping — Which Is Better Value?
Specification Comparison
| Spec | Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ | 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping |
|---|---|---|
| Brand | Western Digital | 454414-001 |
| Capacity | 4 TB | 1TB |
| $/GB | $0.0324 | $0.1168 |
| Price | $129.77 | $116.82 |
| 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 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 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping at $0.1168//GB — that's roughly 72% 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 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping starts at $116.82 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ and 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping product page for detailed specifications and price history.
Frequently Asked Questions
Is Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ or 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping 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 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping at $0.1168//GB. That is approximately 72% better value per gigabyte.
What is the price per GB of Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ?
The Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ is currently priced at $0.0324/GB ($129.77 for 4 TB) at Amazon.
Where can I buy 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping for the cheapest price?
The cheapest price for the 454414-001 AG691A 1TB 7.2K 3.5 FATA FC Hard Drive with Mapping is $116.82 at Newegg, which works out to $0.1168/GB.