Test the speed of internal or external storage, SD card, with the best SD speed test tool!

Highlighted features include:
Check the speed of your external (removable) SD card.
Test the performance of your internal storage or any disks.
Read/write tests in a variety of combinations
Display storage type: eMMC, UFS 2.0, 2.1, or higher
Classification: Class 2, Class 4, Class 6, Class 10, UHS-I, UHS-II, and UHS-III
ext4, exFAT, and FAT/FAT32 file systems are supported.
✔ Support portable and adoptable storage as well
✔ Show storage details: free space, total space, mount options, device name

Supported memory cards:
* Basically any sd cards: Micro SD, SDHC and SDXC
* built-in memory card