The Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) costs $0.1125/GB while the KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... costs $0.0775/GB. KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... offers 31% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) vs KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... — Which Is Better Value?
Specification Comparison
| Spec | Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) | KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... |
|---|---|---|
| Brand | SP Silicon Power | KingSpec |
| Capacity | 4 TB | 4TB |
| $/GB | $0.1125 | $0.0775 |
| Price | $449.97 | $309.99 |
| Retailer | Amazon | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | N/A | ssd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... offers better value at $0.0775//GB compared to the Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) at $0.1125//GB — that's roughly 31% less per gigabyte.
The best deal for the KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... is $309.99 at Newegg, while the Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) starts at $449.97 at Amazon.
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 UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) and KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... product page for detailed specifications and price history.
Frequently Asked Questions
Is Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) or KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... a better deal?
As of June 2026, KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... offers better value at $0.0775//GB compared to Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) at $0.1125//GB. That is approximately 31% better value per gigabyte.
What is the price per GB of Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005)?
The Silicon Power 4TB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/4,500 MB/s (SP04KGBP44UD9005) is currently priced at $0.1125/GB ($449.97 for 4 TB) at Amazon.
Where can I buy KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... for the cheapest price?
The cheapest price for the KingSpec ONEBOOM Gaming Series S5 SSD 4TB Internal 2.5' Solid State Drive 2.5 Inch SATA III 3D NAND Flash Data Storage, Speed up to 550MB/s, laptop... is $309.99 at Newegg, which works out to $0.0775/GB.