The Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX costs $0.0324/GB while the HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable costs $0.0555/GB. Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX offers 42% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX vs HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable — Which Is Better Value?
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Specification Comparison
| Spec | Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX | HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable |
|---|---|---|
| Brand | Western Digital | HP |
| Capacity | 8 TB | 10TB |
| $/GB | $0.0324 | $0.0555 |
| Price | $259.00 | $554.71 |
| 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 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX offers better value at $0.0324//GB compared to the HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable at $0.0555//GB — that's roughly 42% less per gigabyte.
The best deal for the Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX is $259.00 at Amazon, while the HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable starts at $554.71 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 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX and HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable product page for detailed specifications and price history.
Frequently Asked Questions
Is Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX or HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable a better deal?
As of August 2026, Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX offers better value at $0.0324//GB compared to HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable at $0.0555//GB. That is approximately 42% better value per gigabyte.
What is the price per GB of Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX?
The Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFPX is currently priced at $0.0324/GB ($259.00 for 8 TB) at Amazon.
Where can I buy HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable for the cheapest price?
The cheapest price for the HPE 857648-B21 10TB 3.5' SATA 7200rpm Internal Hard Drive - Hot Pluggable is $554.71 at Newegg, which works out to $0.0555/GB.