The Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter costs $0.1265/GB while the SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN costs $0.1395/GB. Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter offers 9% better value per gigabyte as of April 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.

Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter vs SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN — Which Is Better Value?

Specification Comparison

SpecSilicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with AdapterSANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN
BrandSP Silicon PowerSanDisk
Capacity128 GB128 GB
$/GB$0.1265$0.1395
Price$16.19$17.85
RetailerAmazonAmazon
CategorySD CardsSD Cards
Subcategorymicro-sdsd

Price Across Retailers

Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter

Amazon$0.1265//GB
$16.19Buy

SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN

Amazon$0.1395//GB
$17.85Buy

Which Should You Buy?

Based on current pricing data, the Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter offers better value at $0.1265//GB compared to the SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN at $0.1395//GB — that's roughly 9% less per gigabyte.

The best deal for the Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter is $16.19 at Amazon, while the SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN starts at $17.85 at Amazon.

However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter and SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN product page for detailed specifications and price history.

Frequently Asked Questions

Is Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter or SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN a better deal?

As of April 2026, Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter offers better value at $0.1265//GB compared to SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN at $0.1395//GB. That is approximately 9% better value per gigabyte.

What is the price per GB of Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter?

The Silicon Power 128GB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter is currently priced at $0.1265/GB ($16.19 for 128 GB) at Amazon.

Where can I buy SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN for the cheapest price?

The cheapest price for the SANDISK 128GB Ultra SDXC UHS-I Memory Card - Up to 140MB/s, C10, U1, Full HD, SD Card - SDSDUNB-128G-GN6IN is $17.85 at Amazon, which works out to $0.1395/GB.

Compare With Similar Products