The UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 costs $0.0805/GB while the Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty costs $0.0325/GB. Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty offers 60% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 vs Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty — Which Is Better Value?
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Specification Comparison
| Spec | UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 | Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty |
|---|---|---|
| Brand | UnionSine | Avolusion |
| Capacity | 1 TB | 4 TB |
| $/GB | $0.0805 | $0.0325 |
| Price | $80.48 | $129.99 |
| Retailer | Amazon | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty offers better value at $0.0325//GB compared to the UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 at $0.0805//GB — that's roughly 60% less per gigabyte.
The best deal for the Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty is $129.99 at Amazon, while the UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 starts at $80.48 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 and Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty product page for detailed specifications and price history.
Frequently Asked Questions
Is UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 or Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty a better deal?
As of August 2026, Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty offers better value at $0.0325//GB compared to UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 at $0.0805//GB. That is approximately 60% better value per gigabyte.
What is the price per GB of UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0?
The UnionSine 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 is currently priced at $0.0805/GB ($80.48 for 1 TB) at Amazon.
Where can I buy Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty for the cheapest price?
The cheapest price for the Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty is $129.99 at Amazon, which works out to $0.0325/GB.