The HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... costs $0.0650/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 50% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... 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 | HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... | Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ |
|---|---|---|
| Brand | HGST | Western Digital |
| Capacity | 1TB | 4 TB |
| $/GB | $0.0650 | $0.0324 |
| Price | $65.00 | $129.77 |
| Retailer | Newegg | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE...
Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ
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 HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... at $0.0650//GB — that's roughly 50% 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 HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... starts at $65.00 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... 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 HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... 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 HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... at $0.0650//GB. That is approximately 50% better value per gigabyte.
What is the price per GB of HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE...?
The HGST Deskstar E7K1000 HDE721010SLA330 1 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 32 MB Buffer - Hot Swappable DISC PROD SPCL SOURCING SEE... is currently priced at $0.0650/GB ($65.00 for 1TB) at Newegg.
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.