The Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD costs $0.6102/GB while the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) costs $0.0850/GB. SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) offers 86% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD vs SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) — Which Is Better Value?
Specification Comparison
| Spec | Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD | SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) |
|---|---|---|
| Brand | Apricorn | SP Silicon Power |
| Capacity | 4TB | 4 TB |
| $/GB | $0.6102 | $0.0850 |
| Price | $2440.99 | $339.97 |
| Retailer | Newegg | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) offers better value at $0.0850//GB compared to the Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD at $0.6102//GB — that's roughly 86% less per gigabyte.
The best deal for the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) is $339.97 at Amazon, while the Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD starts at $2440.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD and SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) product page for detailed specifications and price history.
Frequently Asked Questions
Is Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD or SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) a better deal?
As of July 2026, SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) offers better value at $0.0850//GB compared to Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD at $0.6102//GB. That is approximately 86% better value per gigabyte.
What is the price per GB of Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD?
The Apricorn Aegis Fortress L3 4TB USB 3.2 Gen 1 Encrypted Portable SSD is currently priced at $0.6102/GB ($2440.99 for 4TB) at Newegg.
Where can I buy SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) for the cheapest price?
The cheapest price for the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) is $339.97 at Amazon, which works out to $0.0850/GB.