The Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E costs $0.1200/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 31% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E 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 | Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E | 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 | Western Digital | SP Silicon Power |
| Capacity | 4TB | 4 TB |
| $/GB | $0.1200 | $0.0825 |
| Price | $479.99 | $329.97 |
| Retailer | Newegg | Amazon |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | nvme | ssd |
Price Across Retailers
Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E
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 Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E at $0.1200//GB — that's roughly 31% 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 Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E starts at $479.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E 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 Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E 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 Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E at $0.1200//GB. That is approximately 31% better value per gigabyte.
What is the price per GB of Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E?
The Western Digital 4TB WD Blue SN5000 NVMe SSD, PCIe Gen 4.0, up to 5,500 MB/s Read Speeds Internal Solid State Drive (SSD) WDS400T4B0E is currently priced at $0.1200/GB ($479.99 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.