The Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE costs $0.1250/GB while the Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) costs $0.0799/GB. Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) offers 36% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE vs Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) — Which Is Better Value?
Prices refresh twice daily; the final price appears at the retailer's checkout. We may earn a commission from retailer links, at no cost to you; it never affects rankings.
Specification Comparison
| Spec | Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE | Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) |
|---|---|---|
| Brand | Crucial | Silicon Power |
| Capacity | 4TB | 4TB |
| $/GB | $0.1250 | $0.0799 |
| Price | $499.99 | $319.79 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) offers better value at $0.0799//GB compared to the Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE at $0.1250//GB — that's roughly 36% less per gigabyte.
The best deal for the Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) is $319.79 at Newegg, while the Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE starts at $499.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE and Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) product page for detailed specifications and price history.
Frequently Asked Questions
Is Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE or Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) a better deal?
As of September 2026, Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) offers better value at $0.0799//GB compared to Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE at $0.1250//GB. That is approximately 36% better value per gigabyte.
What is the price per GB of Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE?
The Crucial X6 SE 4TB External USB-C/USB-A Portable SSD CT4000X6SSD9SE is currently priced at $0.1250/GB ($499.99 for 4TB) at Newegg.
Where can I buy Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) for the cheapest price?
The cheapest price for the Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) is $319.79 at Newegg, which works out to $0.0799/GB.