Didn't know that, thanks. But there's still the problem of a friction fit connection in an environment with a lot of vibration and contaminants. Seems like the

Didn't know that, thanks. But there's still the problem of a friction fit connection in an environment with a lot of vibration and contaminants. Seems like these would be good for use cases where the part needs to be removable and also have high write cycles, like a dash cam or data logger that has no other interface to a PC. Also the eMMC interface exposes quite a bit of the underlying hardware (see mmc-utils on Linux). With SD cards I think you're generally stuck with some kind of SMART interface.