This is an eMMC to microSD adapter. You can attach eMMC module from Hard Kernel to this board and then use a microSD card reader for reformat or OS re-imaging purpose on another PC. Take note that not all card reader can work with this adapter. Our micro SD card reader has been tested to work. For a non-exhaustive list of other brands of supported card reader, please refer here.

Alternatively, for a faster eMMC writing, you can get an eMMC Module USB3.0 Writer here.

This module cannot be used for eMMC with Micron chipset (128GB).