The SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) costs $0.1562/GB while the 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 costs $0.1426/GB. 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 offers 9% better value per gigabyte as of May 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 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 — 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) | 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 |
|---|---|---|
| Brand | SanDisk | Transcend |
| Capacity | 512GB | 512GB |
| $/GB | $0.1562 | $0.1426 |
| Price | $79.99 | $72.99 |
| Retailer | Newegg | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | sd | sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 offers better value at $0.1426//GB compared to the SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) at $0.1562//GB — that's roughly 9% less per gigabyte.
The best deal for the 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 is $72.99 at Newegg, while the SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) starts at $79.99 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 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) and 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 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 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 a better deal?
As of May 2026, 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 offers better value at $0.1426//GB compared to SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN) at $0.1562//GB. That is approximately 9% 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 $0.1562/GB ($79.99 for 512GB) at Newegg.
Where can I buy 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 for the cheapest price?
The cheapest price for the 512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30 is $72.99 at Newegg, which works out to $0.1426/GB.