The UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage costs $0.0340/GB while the Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives costs $0.0472/GB. UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage offers 28% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage vs Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives — Which Is Better Value?
Specification Comparison
| Spec | UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage | Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives |
|---|---|---|
| Brand | UnionSine | Seagate |
| Capacity | 10 TB | 12TB |
| $/GB | $0.0340 | $0.0472 |
| Price | $339.99 | $566.10 |
| 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 UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage offers better value at $0.0340//GB compared to the Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives at $0.0472//GB — that's roughly 28% 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 Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives starts at $566.10 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage and Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives product page for detailed specifications and price history.
Frequently Asked Questions
Is UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage or Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives a better deal?
As of July 2026, UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage offers better value at $0.0340//GB compared to Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives at $0.0472//GB. That is approximately 28% better value per gigabyte.
What is the price per GB of UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage?
The UnionSine Desktop External Hard Drive 10TB, USB3.0 3.5" HDD Storage is currently priced at $0.0340/GB ($339.99 for 10 TB) at Amazon.
Where can I buy Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives for the cheapest price?
The cheapest price for the Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives is $566.10 at Newegg, which works out to $0.0472/GB.