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. 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 1 x Optical Drive Simulation Board 3 x Retainer 2 x Heat Sink 1 x Drive Tray Insert 1 x Button 1 x for GDEMU Board Mounting Bracket 1 x Storage Card Extension Cable 1 x Screw Pack 1 x Instruction Manual