The SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 costs $0.3496/GB while the KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... costs $0.1074/GB. KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... offers 69% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 vs KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... — Which Is Better Value?
Specification Comparison
| Spec | SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 | KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... |
|---|---|---|
| Brand | SanDisk | KingSpec |
| Capacity | 512GB | 512GB |
| $/GB | $0.3496 | $0.1074 |
| Price | $179.00 | $54.99 |
| 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 Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... offers better value at $0.1074//GB compared to the SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 at $0.3496//GB — that's roughly 69% less per gigabyte.
The best deal for the KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... is $54.99 at Newegg, while the SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 starts at $179.00 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 and KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 or KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... a better deal?
As of July 2026, KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... offers better value at $0.1074//GB compared to SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 at $0.3496//GB. That is approximately 69% better value per gigabyte.
What is the price per GB of SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122?
The SanDisk X300 2.5' 512GB SATA III Internal Solid State Drive (SSD) SD7SB7S-512G-1122 is currently priced at $0.3496/GB ($179.00 for 512GB) at Newegg.
Where can I buy KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... for the cheapest price?
The cheapest price for the KingSpec MomeStone 512GB Portable SSD up to 2000MB/s Read, Thumb Drive Metal USB 3.2 Type C USSD Mobile Solid U Disk External USB Flash Drives Data... is $54.99 at Newegg, which works out to $0.1074/GB.