Optical Drive Simulation Board V5.15b Built in Disk Remote Storage Card Mount Kit for SEGA Dreamcast VA1 Item Type: Optical Drive Simulation Board Material: ABS, PCB Color: Black For GDEMU Version: V5.15b Analog Board Seat Interface Height: Approx. 8mm/0.31in Applicable Products: for DreamCast VA1 Game Console (Expansion Adapter for GDEMU) for GDEMU V5.5, for GDEMU V5.15 and for GDEMU 5.15B Upgrade: Changed the Storage Card Holder, All Metal Card Holder, Reading Storage Card More Smoothly and Stable. Features: 1. Strong and durable 2. Effectively improve ventilation and heat dissipation. 3. for GDEMU Storage card cartridge with extension 4. Replace the optical drive chassis 5. Storage card memory card slot 6. Quickly switch game buttons