VMU

Visual Memory Unit

Manufacturer	Sega
Type	Peripheral, handheld game system
Generation	Sixth
Release date	JP: July 30, 1998 NA: September 9, 1999 EU: October 14, 1999 AU: November 30, 1999
Lifespan	1998–2001
Discontinued	JP: March 30, 2001
Media	Dreamcast GD-ROM (used for content transfer)
CPU	8-bit Sanyo LC8670
Storage	100 KB (200 blocks) accessible 28 KB (56 blocks) system data
Input	4 x digital buttons Digital D-Pad
Power	2 × CR2032 lithium batteries
Mass	45g

The Visual Memory Unit (VMU), also referred to as the Visual Memory System (ビジュアルメモリ, Bijuaru Memori) (VMS) 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), multiplayer 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.^[1]

While its most basic function is as a removable storage device, the VMU may also serve as an auxiliary display during normal gameplay and, through the use of additional software (distributed as extras on Dreamcast GD-ROMs), acts as a handheld game console. Console-like features of the VMU include a screen, speaker, proper directional pad, four action buttons, the ability to connect and interact with other VMUs, and the ability to download additional games.