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 ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive costs $0.0896/GB. Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers 64% 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 ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive — 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 | ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive |
|---|---|---|
| Brand | Western Digital | |
| Capacity | 4 TB | 1TB |
| $/GB | $0.0324 | $0.0896 |
| Price | $129.77 | $89.60 |
| 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 ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive at $0.0896//GB — that's roughly 64% 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 ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive starts at $89.60 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 ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive 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 ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive 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 ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive at $0.0896//GB. That is approximately 64% 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 ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive for the cheapest price?
The cheapest price for the ST1000NM0033 Enterprise Mechanical Hard Drive 1TB 7.2k SATA 3.5' 128MB Hard drive is $89.60 at Newegg, which works out to $0.0896/GB.