The SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 costs $0.2282/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 $0.0825/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 64% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 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 | SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 | 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 | SanDisk | SP Silicon Power |
| Capacity | 4TB | 4 TB |
| $/GB | $0.2282 | $0.0825 |
| Price | $912.75 | $329.97 |
| Retailer | Newegg | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25
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 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 $0.0825//GB compared to the SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 at $0.2282//GB — that's roughly 64% 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 $329.97 at Amazon, while the SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 starts at $912.75 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 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 SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 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 June 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 $0.0825//GB compared to SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 at $0.2282//GB. That is approximately 64% better value per gigabyte.
What is the price per GB of SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25?
The SanDisk Desk Drive 4TB* USB Type-C Desktop External SSD, up to 1000MB/s**, High-capacity Solid State Drive SDSSDT40-4T00-NA25 is currently priced at $0.2282/GB ($912.75 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 $329.97 at Amazon, which works out to $0.0825/GB.