The Samsung - P9 Express 512GB microSDXC Memory Card costs $0.6250/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 $0.1878/GB. SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA) offers 70% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Samsung - P9 Express 512GB microSDXC Memory Card 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?
Samsung - P9 Express 512GB microSDXC Memory Card
Specification Comparison
| Spec | Samsung - P9 Express 512GB microSDXC Memory Card | 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 | $0.6250 | $0.1878 |
| Price | $319.99 | $96.15 |
| Retailer | Best Buy | 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 $0.1878//GB compared to the Samsung - P9 Express 512GB microSDXC Memory Card at $0.6250//GB — that's roughly 70% 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 $96.15 at Newegg, while the Samsung - P9 Express 512GB microSDXC Memory Card starts at $319.99 at Best Buy.
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 512GB microSDXC Memory Card 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 512GB microSDXC Memory Card 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 June 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 $0.1878//GB compared to Samsung - P9 Express 512GB microSDXC Memory Card at $0.6250//GB. That is approximately 70% better value per gigabyte.
What is the price per GB of Samsung - P9 Express 512GB microSDXC Memory Card?
The Samsung - P9 Express 512GB microSDXC Memory Card is currently priced at $0.6250/GB ($319.99 for 512 GB) at Best Buy.
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 $96.15 at Newegg, which works out to $0.1878/GB.