Optical Drive Simulation Board V5.15b Built in Disk Remote Storage Card Mount Kit for SEGA Dreamcast VA1 Item Type:OpticalDriveSimulationBoardMaterial: ABS, PCBColor: BlackFor GDEMU Version: V5.15bAnalog Board Seat Interface Height: Approx. 8mm/0.31inApplicable Products: for DreamCast VA1 Game Console (Expansion Adapter for GDEMU) for GDEMU V5.5, for GDEMU V5.15 and for GDEMU 5.15BUpgrade: Changed the Storage Card Holder, All Metal Card Holder, Reading Storage Card More Smoothly and Stable.Features:1. Strong and durable2. Effectively improve ventilation and heat dissipation.3. for GDEMU Storage card cartridge with extension4. Replace the optical drive chassis5. Storage card memory card slot6. Quickly switch game buttons