Model
The Dreamcast.
Released on 27/11/1998 in Japan, 09/09/1999 in America and 14/10/1999 in Europe.
Motherboard
Motherboard
Showing revision 'VA1'.
While the official docs state that the system contains 128 KB of flash memory, this motherboard happens to include a 256 KB EEPROM chip for some reason instead.
The battery and controller ports are found on a daughterboard called 'Front panel'.
Motherboard with important parts labelled
Diagram
Main architecture diagram
Important data buses are labelled with their width and speed.