The Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs costs $0.0782/GB while the Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX costs $0.0287/GB. Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX offers 63% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs vs Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX — Which Is Better Value?
Specification Comparison
| Spec | Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs | Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX |
|---|---|---|
| Brand | Buffalo | Western Digital |
| Capacity | 4TB | 4 TB |
| $/GB | $0.0782 | $0.0287 |
| Price | $312.67 | $114.63 |
| Retailer | Newegg | 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 Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX offers better value at $0.0287//GB compared to the Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs at $0.0782//GB — that's roughly 63% less per gigabyte.
The best deal for the Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX is $114.63 at Amazon, while the Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs starts at $312.67 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs and Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX product page for detailed specifications and price history.
Frequently Asked Questions
Is Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs or Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX a better deal?
As of May 2026, Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX offers better value at $0.0287//GB compared to Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs at $0.0782//GB. That is approximately 63% better value per gigabyte.
What is the price per GB of Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs?
The Buffalo OP-HD4.0BN/B Op-Hdb/B Series - Hard Drive - 4 Tb - Internal - 3.5 Inch - Sata 6Gb/S - Nl - Rohs is currently priced at $0.0782/GB ($312.67 for 4TB) at Newegg.
Where can I buy Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX for the cheapest price?
The cheapest price for the Western Digital 4TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD40EZAX is $114.63 at Amazon, which works out to $0.0287/GB.