Yep, you can swap between any of the CM4s. Although you cannot use the SD card if you get one with MMC. And you also cannot flash the OS to the MMC without extra hardware (put the CM4 in the other hardware, flash it, then move to Devterm/uConsole). Some have used the MMC version which is faster for storage read/write, but I went with the no MMC version because I wanted to be able to use it without extra steps and I wanted to be able to use the SD card.
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