The Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) costs $0.0375/GB while the WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ costs $0.0487/GB. Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) offers 23% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) vs WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ — Which Is Better Value?
WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ
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Specification Comparison
| Spec | Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) | WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 4TB | 4TB |
| $/GB | $0.0375 | $0.0487 |
| Price | $150.00 | $194.99 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) offers better value at $0.0375//GB compared to the WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ at $0.0487//GB — that's roughly 23% less per gigabyte.
The best deal for the Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) is $150.00 at Newegg, while the WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ starts at $194.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) and WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) or WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ a better deal?
As of August 2026, Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) offers better value at $0.0375//GB compared to WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ at $0.0487//GB. That is approximately 23% better value per gigabyte.
What is the price per GB of Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000)?
The Seagate Barracuda XT ST4000DX000 4 TB Hard Drive - SATA [SATA/600] - 3.5 Drive - Internal (ST4000DX000) is currently priced at $0.0375/GB ($150.00 for 4TB) at Newegg.
Where can I buy WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ for the cheapest price?
The cheapest price for the WD Red Plus 4TB 3.5' 5400RPM SATA Internal Hard Disk Drive - WD40EFZZ is $194.99 at Newegg, which works out to $0.0487/GB.