If you need a bunch of ram I’d get the 16GB one but no EMMC. If you have the EMMC variant you can’t use the SD card slot. So get the lite, then get one of the adapter boards that are coming out that support NVME. That way you can use the SD slot as a dual boot or as storage and have fast storage. A NVME drive will run 3x faster then the EMMC on a CM5.