The SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) costs $0.4180/GB while the SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN costs $0.1395/GB. SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN offers 67% better value per gigabyte as of April 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) vs SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN — Which Is Better Value?
Specification Comparison
| Spec | SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) | SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN |
|---|---|---|
| Brand | SanDisk | SanDisk |
| Capacity | 64GB | 128 GB |
| $/GB | $0.4180 | $0.1395 |
| Price | $26.75 | $17.85 |
| Retailer | Newegg | Amazon |
| Category | SD Cards | SD Cards |
| Subcategory | sd | sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN offers better value at $0.1395//GB compared to the SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) at $0.4180//GB — that's roughly 67% less per gigabyte.
The best deal for the SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN is $17.85 at Amazon, while the SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) starts at $26.75 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 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) and SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) or SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN a better deal?
As of April 2026, SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN offers better value at $0.1395//GB compared to SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) at $0.4180//GB. That is approximately 67% better value per gigabyte.
What is the price per GB of SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN)?
The SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) is currently priced at $0.4180/GB ($26.75 for 64GB) at Newegg.
Where can I buy SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN for the cheapest price?
The cheapest price for the SanDisk 128GB Ultra SDXC UHS-I Memory Card - 100MB/s, C10, U1, Full HD, SD Card - SDSDUNR-128G-GN6IN is $17.85 at Amazon, which works out to $0.1395/GB.