The Samsung P9 Express microSDXC Express Memory Card 512GB costs $0.2929/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 38% better value per gigabyte as of September 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Samsung P9 Express microSDXC Express Memory Card 512GB 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 | Samsung P9 Express microSDXC Express Memory Card 512GB | SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) |
|---|---|---|
| Brand | Samsung | SanDisk |
| Capacity | 512 GB | 512GB |
| $/GB | $0.2929 | $0.1816 |
| Price | $149.99 | $92.99 |
| Retailer | Amazon | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | micro-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 Samsung P9 Express microSDXC Express Memory Card 512GB at $0.2929//GB — that's roughly 38% 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 Samsung P9 Express microSDXC Express Memory Card 512GB starts at $149.99 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Samsung P9 Express microSDXC Express Memory Card 512GB 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 Samsung P9 Express microSDXC Express Memory Card 512GB 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 Samsung P9 Express microSDXC Express Memory Card 512GB at $0.2929//GB. That is approximately 38% better value per gigabyte.
What is the price per GB of Samsung P9 Express microSDXC Express Memory Card 512GB?
The Samsung P9 Express microSDXC Express Memory Card 512GB is currently priced at $0.2929/GB ($149.99 for 512 GB) at Amazon.
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.