For vs Unionsine Hard Drives & SSDs
Side-by-side price per gigabyte comparison across 8 products.
As of March 2026, For averages $1.4619/GB across 6 products while Unionsine averages $0.0665/GB across 2 products on BuyPerUnit. Unionsine offers 95% better value per gigabyte for hard drives & ssds.
For
Cheapest Product
FOR ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5 ST2000NM0033 55FX52TB · $137.32 · 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 | For | FOR ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5 ST2000NM0033 55FX5 | 2TB | $0.0687 | $137.32 | 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 | For | for 1pc ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5 ST2000NM0033 55FX5 | 2TB | $0.1050 | $210.00 | newegg |
| 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 |
| 3 | For | for 1pc Suitable for 1pc ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5 ST2000NM0033 | 2TB | $0.1360 | $272.00 | newegg |
| 4 | For | For 656108-001 655710-B21 7.2K 1T SATA 2.5'' Hard Drive 1TB | 1TB | $0.1368 | $136.77 | newegg |
| 5 | For | FOR DPWC300 SSD PCIE Adapter Card 2 Slot M.2 0NTRCY 023PX6 + 512GB m.2 NVME SSD | 512GB | $0.7682 | $393.30 | newegg |
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 For's $1.4619/GB — that's roughly 95% 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 For's cheapest option is the FOR ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5 ST2000NM0033 55FX5 (2TB) at $0.0687/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 For or Unionsine cheaper per GB for hard drives & ssds?
As of March 2026, Unionsine averages $0.0665/GB compared to For at $1.4619/GB. Unionsine is approximately 95% cheaper per gigabyte on average.
How many For and Unionsine hard drives & ssds does BuyPerUnit track?
BuyPerUnit currently tracks 6 For products and 2 Unionsine products in the hard drives & ssds category, all ranked by price per gigabyte.
What is the cheapest For hard drives & ssd per GB?
The cheapest For option is the FOR ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5 ST2000NM0033 55FX5 at $0.0687/GB ($137.32 for 2TB).
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).