Bill of Material is in interactive mode - click on file https://github.com/costarc/Atari2600-MultiGame/blob/master/ibom.html (you may need to download to your local computer to see it properly)
This cartridge supports 2K and 4K games.
2K games must be 4K as well (two copies of the same file appended). For example, the followign two commands will (compatible with Mac OS, Linux and CygWin in windows) will create a 4kgame.bin file with two copies of the same 2kgame.bin:
cat 2kgame.bin > 4kgame.bin
cat 2kgame.bin >> 4kgame.bin
The PCB supports 27C512 ROMs and EPROMS and can hold up to 16 games, switchable via the DIP Switch at the back of the cartridge.