Use the best SD card test tool!
Test the speed of internal or external storage!
Easy to use even for beginners. Quick tests.Highlighted features:
Measure the speed of your external (removable) SD card
Measure the speed of your internal storage
Read/write tests, several different settings.
Verify written data (detect damaged or fake card)
Added storage details button
Added big file support on FAT-based file system
Speed up fixes