The SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) costs $0.2334/GB while the SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s costs $0.1758/GB. SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s offers 25% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) vs SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s — Which Is Better Value?
Specification Comparison
| Spec | SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) | SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s |
|---|---|---|
| Brand | SanDisk | Samsung |
| Capacity | 512GB | 512GB |
| $/GB | $0.2334 | $0.1758 |
| Price | $119.50 | $89.99 |
| 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 SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s offers better value at $0.1758//GB compared to the SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) at $0.2334//GB — that's roughly 25% less per gigabyte.
The best deal for the SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s is $89.99 at Newegg, while the SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) starts at $119.50 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 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) and SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) or SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s a better deal?
As of July 2026, SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s offers better value at $0.1758//GB compared to SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) at $0.2334//GB. That is approximately 25% better value per gigabyte.
What is the price per GB of SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN)?
The SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) is currently priced at $0.2334/GB ($119.50 for 512GB) at Newegg.
Where can I buy SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s for the cheapest price?
The cheapest price for the SAMSUNG SD PRO Plus + USB Reader 512GB MicroSD Memory Card Read up to 180MB/s, Write up to 130MB/s is $89.99 at Newegg, which works out to $0.1758/GB.