Visual Memory Unit for SEGA Dreamcast Memory Card VMU - AliExpress
found this on odd 3rd party VMU on play-asia was this ever released(link down below) : r/dreamcast
Dreamcast VMU Pi [Completed] - sudomod
DC Sega Dreamcast Official/Genuine Visual Memory Unit System VMU/VMS [HKT-7000]
Sega Dreamcast VMU Visual Memory Unit Card HKT-7000 White Blue Green Pick Color
Memory Card Visual Vmu - Sega Dreamcast - Red
For Sega Dreamcast DC Big capacity Memory Card 4MB Storage card - AliExpress
Visual Memory Unit-Red : Video Games
A mini gameboy I built : r/Gameboy
DC SD TF Card Adapter Reader V2 for SEGA Dreamcast and CD with DreamShell Boot Loader
Visual Memory Unit for SEGA Dreamcast Memory Card VMU