Raspberry PI has released their new compute module 4. It now uses high density connectors similar to SOMs from Variscite instead of the edge connector used on previous modules.
Options to buy in the US are:
Are we concerned we don’t see Mouser or Digikey?
SEEED might also be an option, but would ship from China.
There are a lot of variants – see the following page:
Is the rPI organization set up to supply all these variants, or will we be left waiting months to get the variant we need?
See previous discussion here.