Feature:1. Professional Design: Applicable for GDEMU optical drive simulation board, with an expansion storage card box for GDEMU, replacing the CD ROM drive housing.2. Heat Dissipation: Optical drive board replaces the memory card holder, all metal card holder, with two radiators, effectively improve the ventilation and heat dissipation effect, read the memory card more smoothly, stable and wear resistant.3. Perfectly Compatible: Optical drive simulation board for Sega DreamCast console VA1 console (expansion adapter for GDEMU). With high and stable performance, you are sure to enjoy your games.4. Superior Performance: Replacement optical drive simulation board has excellent game compatibility, perfectly runs the original as a GDI image, and is compatible with a CDI image.5. Easy to Install: Replacement optical drive simulation board is easy to install, the original optical drive seat can be removed and replaced with a for GDEMU, no soldering required, no need to modify the machine board. No harm to the host.Specification:Item Type: Optical Drive Simulation BoardMaterial: 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.Package List:1 x Optical Drive Simulation Board3 x Retainer2 x Heat Sink1 x Drive Tray Insert1 x Button 1 x for GDEMU Board Mounting Bracket1 x Storage Card Extension Cable1 x Screw Pack1 x Instruction ManualNote:1. Can install dc host for VA1 motherboard, otherwise it will burn for GDEMU. Remember not to plug and unplug for GDEMU with power on, must be careful.2. Manual measurement, please allow some errors.