The WD - Blue SA510 4TB Internal SSD SATA costs $0.1437/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 $0.0844/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 41% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD - Blue SA510 4TB Internal SSD SATA 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?
WD - Blue SA510 4TB Internal SSD SATA
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Specification Comparison
| Spec | WD - Blue SA510 4TB Internal SSD SATA | 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 | Western Digital | Silicon Power |
| Capacity | 4 TB | 4TB |
| $/GB | $0.1437 | $0.0844 |
| Price | $574.99 | $337.79 |
| Retailer | Best Buy | 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 $0.0844//GB compared to the WD - Blue SA510 4TB Internal SSD SATA at $0.1437//GB — that's roughly 41% 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 WD - Blue SA510 4TB Internal SSD SATA starts at $574.99 at Best Buy.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD - Blue SA510 4TB Internal SSD SATA 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 WD - Blue SA510 4TB Internal SSD SATA 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 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 WD - Blue SA510 4TB Internal SSD SATA at $0.1437//GB. That is approximately 41% better value per gigabyte.
What is the price per GB of WD - Blue SA510 4TB Internal SSD SATA?
The WD - Blue SA510 4TB Internal SSD SATA is currently priced at $0.1437/GB ($574.99 for 4 TB) at Best Buy.
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 $337.79 at Newegg, which works out to $0.0844/GB.