The Clear Blue Japanese Visual Memory Unit for Sega Dreamcast (VMU) is an external attachment memory card designed specifically for the Sega Dreamcast console. Made by Sega in Japan, this blue VMU allows players to store game data and expand the capabilities of their console. It offers a sleek and stylish design that complements the overall aesthetic of the Sega Dreamcast platform, making it a must-have accessory for any avid gamer looking to enhance their gaming experience.