Sega's Visual Memory Unit (VMU) for the Dreamcast is a memory card unit that inserts into the controller. Equipped with an LCD display, a D-pad, and four action buttons, the VMU also acts as a second screen, a virtual pet game, a mini-game player, a real-time clock, and a facilitator for multiplayer gaming.
LCD Display
128KB flash memory
Digital D-Pad, 4 input buttons, 1 reset button
