The KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash costs $0.1562/GB while the Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed costs $2.0250/GB. KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash offers 92% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash vs Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed — Which Is Better Value?
Specification Comparison
| Spec | KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash | Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed |
|---|---|---|
| Brand | KingSpec | Sony |
| Capacity | 256GB | 320GB |
| $/GB | $0.1562 | $2.0250 |
| Price | $39.99 | $648.00 |
| Retailer | Newegg | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | micro-sd | sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash offers better value at $0.1562//GB compared to the Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed at $2.0250//GB — that's roughly 92% less per gigabyte.
The best deal for the KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash is $39.99 at Newegg, while the Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed starts at $648.00 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash and Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed product page for detailed specifications and price history.
Frequently Asked Questions
Is KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash or Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed a better deal?
As of May 2026, KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash offers better value at $0.1562//GB compared to Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed at $2.0250//GB. That is approximately 92% better value per gigabyte.
What is the price per GB of KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash?
The KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash is currently priced at $0.1562/GB ($39.99 for 256GB) at Newegg.
Where can I buy Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed for the cheapest price?
The cheapest price for the Sony CFexpress 320GB Type A Memory Card with 800MB/s Read & 700MB/s Write speed is $648.00 at Newegg, which works out to $2.0250/GB.