|CPU||12.5 MHz Motorola 68000|
|Graphics||Custom ASIC, 320 x 224 resolution|
|Memory||6 Mbit Main RAM|
|Released||JP: December 12, 1991|
NA: October 15, 1992
UK: April 2, 1993
|Added to Museum||Sega CD model 2: December 25, 1993|
It allowed Sega Genesis and Sega Mega Drive to use CD-ROMs. It also added a second processor for sound, expanded the system memory, and had expanded graphic capabilities.
Sega CD 32x
The 32X, known as Genesis 32X in North America, Super 32X in Japan, Mega Drive 32X in Europe and Australia, and Mega 32X in Brazil, added two 32-bit processors, more memory and more RAM.
The Sega CD and 32X could be combined and the added capability was utilized in games labeled as supported by the Sega CD 32X.