The WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP costs $0.0460/GB while the UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage costs $0.0340/GB. UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage offers 26% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP vs UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage — Which Is Better Value?
Prices refresh twice daily; the final price appears at the retailer's checkout. We may earn a commission from retailer links, at no cost to you; it never affects rankings.
Specification Comparison
| Spec | WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP | UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage |
|---|---|---|
| Brand | Western Digital | UnionSine |
| Capacity | 10TB | 10 TB |
| $/GB | $0.0460 | $0.0340 |
| Price | $459.99 | $339.99 |
| 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 UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage offers better value at $0.0340//GB compared to the WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP at $0.0460//GB — that's roughly 26% less per gigabyte.
The best deal for the UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage is $339.99 at Amazon, while the WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP starts at $459.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP and UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP or UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage a better deal?
As of August 2026, UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage offers better value at $0.0340//GB compared to WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP at $0.0460//GB. That is approximately 26% better value per gigabyte.
What is the price per GB of WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP?
The WD Purple Pro 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives - WD102PURP is currently priced at $0.0460/GB ($459.99 for 10TB) at Newegg.
Where can I buy UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage for the cheapest price?
The cheapest price for the UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage is $339.99 at Amazon, which works out to $0.0340/GB.