MODULE VS DEV KIT

So I was wondering if the module used in the dev kit and the one selling apart are the same?
Because the dev kit that includes the module is cheaper than if I just buy the module and I do not know what’s the point of it…

The dev-kit has a sd-card slot where the “production module” comes with 16 GB eMMC flash memory on board - which makes it more expensive.

The commercial module is also qualified for production use and has a warranty intended for deployment. The devkit warranty covers development use-cases.

So I am developing a carrier board for the module but 16 GB eMMC flash memory is not enough. I have the carrier board reference design schematics but there is no SD implementation. Can someone help me with it?
Thank you.

Hi, there is SD CARD/SDIO design guide in product DG: https://developer.nvidia.com/embedded/dlc/jetson-nano-product-design-guide