The
Visual Memory Unit (
VMU), also referred to as the (
VM) in
Japan and
Europe, is the primary
memory card produced by
Sega for the
Dreamcast home video game console. The device features a monochrome
liquid crystal display (LCD),
multi-player gaming capability (via connectors at the top),
second screen functionality, a
real-time clock,
file manager, built-in
flash memory, and
sound capability. Prior to the launch of the Dreamcast, a special
Godzilla edition VMU, preloaded with a
virtual pet game, was released on July 30, 1998 in Japan, 6 months before
Sony released a similar device (albeit lacking any of the VMU's second-screen functionality) for its
PlayStation console.