The Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black costs $0.1000/GB while the Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) costs $0.2810/GB. Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black offers 64% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black vs Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) — Which Is Better Value?
Specification Comparison
| Spec | Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black | Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) |
|---|---|---|
| Brand | Crucial | SP Silicon Power |
| Capacity | 1 TB | 128 GB |
| $/GB | $0.1000 | $0.2810 |
| Price | $99.99 | $35.97 |
| Retailer | Best Buy | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black offers better value at $0.1000//GB compared to the Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) at $0.2810//GB — that's roughly 64% less per gigabyte.
The best deal for the Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black is $99.99 at Best Buy, while the Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) starts at $35.97 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black and Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) product page for detailed specifications and price history.
Frequently Asked Questions
Is Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black or Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) a better deal?
As of May 2026, Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black offers better value at $0.1000//GB compared to Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) at $0.2810//GB. That is approximately 64% better value per gigabyte.
What is the price per GB of Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black?
The Crucial - X6 SE 1TB External USB-C/USB-A Portable SSD - Black is currently priced at $0.1000/GB ($99.99 for 1 TB) at Best Buy.
Where can I buy Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) for the cheapest price?
The cheapest price for the Silicon Power 128GB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SU128GBSS3A55S25AH) is $35.97 at Amazon, which works out to $0.2810/GB.