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 $0.0844/GB while the Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 costs $0.2021/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 58% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) vs Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 — Which Is Better Value?
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Specification Comparison
| Spec | Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) | Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 |
|---|---|---|
| Brand | Silicon Power | Crucial |
| Capacity | 4TB | 4TB |
| $/GB | $0.0844 | $0.2021 |
| Price | $337.79 | $808.21 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE)
Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9
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 $0.0844//GB compared to the Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 at $0.2021//GB — that's roughly 58% 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 $337.79 at Newegg, while the Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 starts at $808.21 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) and Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 product page for detailed specifications and price history.
Frequently Asked Questions
Is Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE) or Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 a better deal?
As of August 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 $0.0844//GB compared to Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 at $0.2021//GB. That is approximately 58% better value per gigabyte.
What is the price per GB of Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5' 7mm (0.28') SSD Internal Solid State Drive (SU004TBSS3A55S25NE)?
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 currently priced at $0.0844/GB ($337.79 for 4TB) at Newegg.
Where can I buy Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 for the cheapest price?
The cheapest price for the Crucial X9 4TB Portable SSD - Up to 1050MB/s Read - PC and Mac, Lightweight and small - USB 3.2 External Solid State Drive - CT4000X9SSD9 is $808.21 at Newegg, which works out to $0.2021/GB.