The HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive costs $0.0712/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 54% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive 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 | HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive | Avolusion PRO-T5 4TB USB 3.0 External Hard Drive for Windows & Mac OS (White) - 2 Year Warranty |
|---|---|---|
| Brand | HP | Avolusion |
| Capacity | 1TB | 4 TB |
| $/GB | $0.0712 | $0.0325 |
| Price | $71.19 | $129.99 |
| Retailer | Newegg | 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 HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive at $0.0712//GB — that's roughly 54% 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 HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive starts at $71.19 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive 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 HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive 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 HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive at $0.0712//GB. That is approximately 54% better value per gigabyte.
What is the price per GB of HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive?
The HP 646894-001 1Tb 7200Rpm Sata 3.5Inch Hot Swap Hard Disk Drive is currently priced at $0.0712/GB ($71.19 for 1TB) at Newegg.
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.