* [[documentation:hardware_revisions:opera|Opera]]
    * [[documentation:hardware_revisions:opera:consoles|Consoles]]
    * [[documentation:hardware_revisions:opera:arcade|Arcade]]
    * [[documentation:hardware_revisions:opera:serial_numbers|Serial Numbers]]
  * [[documentation:hardware_revisions:m2|M2]]
    * [[documentation:hardware_revisions:m2:consoles|Consoles]]
    * [[documentation:hardware_revisions:m2:arcade|Arcade]]
    * [[documentation:hardware_revisions:m2:serial_numbers|Serial Numbers]]