The Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 costs $0.3580/GB while the KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... costs $0.0840/GB. KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... offers 77% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 vs KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... — Which Is Better Value?
Specification Comparison
| Spec | Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 | KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... |
|---|---|---|
| Brand | Silicon Power | KingSpec |
| Capacity | 500GB | 512GB |
| $/GB | $0.3580 | $0.0840 |
| Price | $178.99 | $42.99 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | nvme | ssd |
Price Across Retailers
Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005
KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid...
Which Should You Buy?
Based on current pricing data, the KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... offers better value at $0.0840//GB compared to the Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 at $0.3580//GB — that's roughly 77% less per gigabyte.
The best deal for the KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... is $42.99 at Newegg, while the Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 starts at $178.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 and KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... product page for detailed specifications and price history.
Frequently Asked Questions
Is Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 or KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... a better deal?
As of June 2026, KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... offers better value at $0.0840//GB compared to Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 at $0.3580//GB. That is approximately 77% better value per gigabyte.
What is the price per GB of Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005?
The Silicon Power 500GB UD90 NVMe 4.0 Gen4 PCIe M.2 SSD R/W up to 5,000/2,700 MB/s - Model SP500GBP44UD9005 is currently priced at $0.3580/GB ($178.99 for 500GB) at Newegg.
Where can I buy KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... for the cheapest price?
The cheapest price for the KingSpec MomeStone 512GB Portable SSD up to 2000MB/s, Thumb Drive 20Gbps USB 3.2 Gen 2, Type-C USSD Mobile Solid U Disk USB Flash External Solid... is $42.99 at Newegg, which works out to $0.0840/GB.