Download here: https://www.flagsoft.com/cmswp/software/sdspeed-sd-card-memory-speed-test/ Software to verify the integrity of a flash SD card or USB device You can test SD (secure digital) cards but also USB flash drives, even hard drives that are connected through USB Are you looking for sd card speed test on a Mac, how to check speed of memory card, SD card speed test, flash card read write test, how to check SD card speed or software to measure micro SD performance? Is your SD Flash Memory Card or USB Flash Drive fake? SD Card Speed Test (H2testw for Mac) | Pen Drive, USB Flash Drive