Our Summary and Conclusion
- SanDisk Extreme 16GB microSDHC (model SDSDQX-016G) – from $26.50
- SanDisk Extreme 32GB microSDHC (model SDSDQX-032G) – from $45.95
- SanDisk Extreme 64GB microSDXC (model SDSDQX-064G) – from $97.42
At this prices, you can find similar capacity cards for roughly half the amount, but they won’t perform nearly as well. The Class 10 and UHS-I specifications call for a minimum transfer speed of only 10MB/s. With over 80MB/s and 50MB/s reads and writes, respectively, these SanDisk Extreme cards obviously exceed the minimum spec. Cheaper cards do as well—it’s common to find 64GB cards that offer 50MB/s reads and 10MB/s writes—but they don’t come close to what the SanDisk Extreme cards can do.