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 while the SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD costs $0.3906/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 79% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
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... vs SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD — Which Is Better Value?
Specification Comparison
| Spec | 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... | SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD |
|---|---|---|
| Brand | KingSpec | SanDisk |
| Capacity | 512GB | 256GB |
| $/GB | $0.0840 | $0.3906 |
| Price | $42.99 | $99.99 |
| Retailer | Newegg | Newegg |
| Category | SSDs & NVMe Drives | SSDs & NVMe Drives |
| Subcategory | ssd | ssd |
Price Across Retailers
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 SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD at $0.3906//GB — that's roughly 79% 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 SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD starts at $99.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each 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... and SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD product page for detailed specifications and price history.
Frequently Asked Questions
Is 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... or SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD 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 SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD at $0.3906//GB. That is approximately 79% better value per gigabyte.
What is the price per GB of 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...?
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 currently priced at $0.0840/GB ($42.99 for 512GB) at Newegg.
Where can I buy SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD for the cheapest price?
The cheapest price for the SanDisk SD8SN8U-256G-1122 X400 M.2 2280 256GB SATA III Internal SSD is $99.99 at Newegg, which works out to $0.3906/GB.