A MicroSD card or an eMMC module is required to boot the OS. We recommend this eMMC module for faster OS booting, quicker application launching, seamless multi-tasking and efficient access to the cloud.
This 64GB eMMC Module has Android pre-installed to run out of the box .
To flash or update the OS of the eMMC Module you need eMMC Module Reader or USB3.0 eMMC Module Writer.
More information is available on the website of Hardkernel.