Es.3 vs Unionsine Hard Drives & SSDs
Side-by-side price per gigabyte comparison across 3 products.
As of March 2026, Es.3 averages $0.1485/GB across 1 products while Unionsine averages $0.0665/GB across 2 products on BuyPerUnit. Unionsine offers 55% better value per gigabyte for hard drives & ssds.
Es.3
Cheapest Product
ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5-inch ST2000NM0033 55FX52TB · $297.00 · 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 | Es.3 | ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5-inch ST2000NM0033 55FX5 | 2TB | $0.1485 | $297.00 | 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 Es.3's $0.1485/GB — that's roughly 55% 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 Es.3's cheapest option is the ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5-inch ST2000NM0033 55FX5 (2TB) at $0.1485/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 Es.3 or Unionsine cheaper per GB for hard drives & ssds?
As of March 2026, Unionsine averages $0.0665/GB compared to Es.3 at $0.1485/GB. Unionsine is approximately 55% cheaper per gigabyte on average.
How many Es.3 and Unionsine hard drives & ssds does BuyPerUnit track?
BuyPerUnit currently tracks 1 Es.3 products and 2 Unionsine products in the hard drives & ssds category, all ranked by price per gigabyte.
What is the cheapest Es.3 hard drives & ssd per GB?
The cheapest Es.3 option is the ES.3 2TB Hard Drive SATA 6Gbps 7.2k 3.5-inch ST2000NM0033 55FX5 at $0.1485/GB ($297.00 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).