Silicon Power vs Unionsine Hard Drives & SSDs
Side-by-side price per gigabyte comparison across 3 products.
As of March 2026, Silicon Power averages $0.1587/GB across 1 products while Unionsine averages $0.0665/GB across 2 products on BuyPerUnit. Unionsine offers 58% better value per gigabyte for hard drives & ssds.
Silicon Power
Cheapest Product
SSD Solid State Drive 2.5'' R-Rem-SLL-A55 For SP Silicon Power A55 256GB A 55256GB · $40.63 · newegg
Unionsine
Better ValueCheapest Product
UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Black)500 GB · $30.73 · amazon
Top Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | Silicon Power | SSD Solid State Drive 2.5'' R-Rem-SLL-A55 For SP Silicon Power A55 256GB A 55 | 256GB | $0.1587 | $40.63 | newegg |
| 1 | Unionsine | UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Black) | 500 GB | $0.0615 | $30.73 | amazon |
| 2 | Unionsine | UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Pink) | 500 GB | $0.0715 | $35.73 | amazon |
Which Should You Buy?
Based on current pricing data, Unionsine offers better overall value for hard drives & ssds at an average of $0.0665/GB compared to Silicon Power's $0.1587/GB — that's roughly 58% less per gigabyte.
Unionsine's best deal is the UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Black) (500 GB) at $0.0615/GB, while Silicon Power's cheapest option is the SSD Solid State Drive 2.5'' R-Rem-SLL-A55 For SP Silicon Power A55 256GB A 55 (256GB) at $0.1587/GB.
However, price per GB isn't everything — consider factors like warranty, performance specs, and your specific capacity needs. Check individual product pages for detailed specifications.
Frequently Asked Questions
Is Silicon Power or Unionsine cheaper per GB for hard drives & ssds?
As of March 2026, Unionsine averages $0.0665/GB compared to Silicon Power at $0.1587/GB. Unionsine is approximately 58% cheaper per gigabyte on average.
How many Silicon Power and Unionsine hard drives & ssds does BuyPerUnit track?
BuyPerUnit currently tracks 1 Silicon Power products and 2 Unionsine products in the hard drives & ssds category, all ranked by price per gigabyte.
What is the cheapest Silicon Power hard drives & ssd per GB?
The cheapest Silicon Power option is the SSD Solid State Drive 2.5'' R-Rem-SLL-A55 For SP Silicon Power A55 256GB A 55 at $0.1587/GB ($40.63 for 256GB).
What is the cheapest Unionsine hard drives & ssd per GB?
The cheapest Unionsine option is the UnionSine 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one, Xbox 360-(Black) at $0.0615/GB ($30.73 for 500 GB).