The Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card costs $0.5937/GB while the KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack costs $0.1347/GB. KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack offers 77% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card vs KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack — Which Is Better Value?
Specification Comparison
| Spec | Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card | KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack |
|---|---|---|
| Brand | Lexar | KingSpec |
| Capacity | 640GB | 512GB |
| $/GB | $0.5937 | $0.1347 |
| Price | $379.99 | $68.99 |
| Retailer | Newegg | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | sd | micro-sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack offers better value at $0.1347//GB compared to the Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card at $0.5937//GB — that's roughly 77% less per gigabyte.
The best deal for the KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack is $68.99 at Newegg, while the Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card starts at $379.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card and KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack product page for detailed specifications and price history.
Frequently Asked Questions
Is Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card or KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack a better deal?
As of May 2026, KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack offers better value at $0.1347//GB compared to Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card at $0.5937//GB. That is approximately 77% better value per gigabyte.
What is the price per GB of Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card?
The Lexar Gold Series Professional 640GB CFexpress 4.0 Type-A Memory Card is currently priced at $0.5937/GB ($379.99 for 640GB) at Newegg.
Where can I buy KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack for the cheapest price?
The cheapest price for the KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack is $68.99 at Newegg, which works out to $0.1347/GB.