VMU
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The Visual Memory Unit, also referred to as the Visual Memory System in Japan and Europe, is the primary memory card produced by Sega for the Dreamcast home video game console. Wikipedia
CPU: 8-bit Sanyo LC8670
Discontinued: JP: March 30, 2001
Manufacturer: Sega
Storage: 100 KB (200 blocks) accessible; 28 KB (56 blocks) system data