The SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN costs $0.2074/GB while the Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA costs $0.5066/GB. SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN offers 59% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN vs Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA — Which Is Better Value?
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Specification Comparison
| Spec | SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN | Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA |
|---|---|---|
| Brand | SanDisk | Transcend |
| Capacity | 128 GB | 128GB |
| $/GB | $0.2074 | $0.5066 |
| Price | $26.55 | $64.84 |
| Retailer | Amazon | Newegg |
| Category | SD Cards | SD Cards |
| Subcategory | micro-sd | micro-sd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN offers better value at $0.2074//GB compared to the Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA at $0.5066//GB — that's roughly 59% less per gigabyte.
The best deal for the SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN is $26.55 at Amazon, while the Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA starts at $64.84 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 microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN and Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA product page for detailed specifications and price history.
Frequently Asked Questions
Is SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN or Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA a better deal?
As of August 2026, SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN offers better value at $0.2074//GB compared to Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA at $0.5066//GB. That is approximately 59% better value per gigabyte.
What is the price per GB of SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN?
The SanDisk 128GB Ultra microSDXC UHS-I Class 10 Memory Card 100 MB/s SDSQUNR-128G-GN6MN is currently priced at $0.2074/GB ($26.55 for 128 GB) at Amazon.
Where can I buy Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA for the cheapest price?
The cheapest price for the Transcend 300s 128GB Class 10/UHS-I U3 microSDXC with Adapter TS128GUSD300SA is $64.84 at Newegg, which works out to $0.5066/GB.