The manual on how to create a clone of a flash drive. ImageUSB, USB Image Tool and AOMEI Partition Assistant software. Differences between cloning and copying a SD card
sd-card - Howtorecover
- How to test sd card speed via H2testw. It's a very simple utility for checking the sd card reading / writing speed via Windows
- Best apps for micro sd card speed test. Free benchmark tools for Windows, Android: CrystalDiskMark, Flash Memory Toolkit, H2testw, SD Card Test Pro
- A1 SD Bench is a free mobile app for testing sd cards performance. It determines the class of your device (depending on its actual speed) and shows its reading / writing speed in MB