The SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single costs $1.0000/GB while the SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) costs $0.1816/GB. SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) offers 82% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single vs SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) — Which Is Better Value?
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Specification Comparison
| Spec | SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single | SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) |
|---|---|---|
| Brand | SanDisk | SanDisk |
| Capacity | 400GB | 512GB |
| $/GB | $1.0000 | $0.1816 |
| Price | $399.99 | $92.99 |
| 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 SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) offers better value at $0.1816//GB compared to the SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single at $1.0000//GB — that's roughly 82% less per gigabyte.
The best deal for the SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) is $92.99 at Newegg, while the SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single starts at $399.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single and SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single or SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) a better deal?
As of September 2026, SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) offers better value at $0.1816//GB compared to SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single at $1.0000//GB. That is approximately 82% better value per gigabyte.
What is the price per GB of SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single?
The SanDisk Extreme PRO CFexpress 4.0 Type-B Memory Card - 400GB, Single is currently priced at $1.0000/GB ($399.99 for 400GB) at Newegg.
Where can I buy SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) for the cheapest price?
The cheapest price for the SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) is $92.99 at Newegg, which works out to $0.1816/GB.