Currently, AMSTEAM has 3 boards:
* SPI interface, with WiFi or Ethernet module. Needed to connect to Internet. M4 or others may be compatible in the future if I (Abalore) manage to put my hands on any of them.
* ROM Box, in 8 or 32 slot versions. Needed to store the AMSTEAM ROM (optionally custom boot and/or other ROMs). This is not required if you already have a M4, a X-MEM or whatever other card capable of storing a ROM.