The SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN costs $0.1412/GB while the SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) costs $0.4180/GB. SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN offers 66% better value per gigabyte as of April 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN vs SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) — Which Is Better Value?
Specification Comparison
| Spec | SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN | SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) |
|---|---|---|
| Brand | SanDisk | SanDisk |
| Capacity | 128 GB | 64GB |
| $/GB | $0.1412 | $0.4180 |
| Price | $18.07 | $26.75 |
| Retailer | Amazon | Newegg |
| 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 - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN offers better value at $0.1412//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 66% less per gigabyte.
The best deal for the SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN is $18.07 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 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN and SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) product page for detailed specifications and price history.
Frequently Asked Questions
Is SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN or SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) a better deal?
As of April 2026, SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN offers better value at $0.1412//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 66% better value per gigabyte.
What is the price per GB of SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN?
The SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN is currently priced at $0.1412/GB ($18.07 for 128 GB) at Amazon.
Where can I buy SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) for the cheapest price?
The cheapest price for the SanDisk 64GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to100MB/s (SDSDUNR-064G-GN6IN) is $26.75 at Newegg, which works out to $0.4180/GB.