The SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN costs $0.1495/GB while the SANDISK 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) costs $0.4358/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 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) — 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 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) |
|---|---|---|
| Brand | SanDisk | SanDisk |
| Capacity | 128 GB | 64 GB |
| $/GB | $0.1495 | $0.4358 |
| Price | $19.14 | $27.89 |
| Retailer | Amazon | 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 - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN offers better value at $0.1495//GB compared to the SANDISK 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) at $0.4358//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 $19.14 at Amazon, while the SANDISK 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) starts at $27.89 at Amazon.
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 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) 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 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) 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 $0.1495//GB compared to SANDISK 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) at $0.4358//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 $0.1495/GB ($19.14 for 128 GB) at Amazon.
Where can I buy SANDISK 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) for the cheapest price?
The cheapest price for the SANDISK 64 GB Class 4 SDXC Flash Memory Card (SDSDB-064G-B35) is $27.89 at Amazon, which works out to $0.4358/GB.