Feature:1. APPLICABLE MODELS: For GDEMU optical drive simulation board for Sega DreamCast game console for VA1 version host (for GDEMU expansion adapter), with for GDEMU expansion storage card holder, replace the CD ROM drive housing.2. HEAT DISSIPATION: Optical drive simulation board reads games fast and smoothly during the game, replaces the storage card holder, all metal card holder with two heat sinks, effectively improves ventilation and heat dissipation, reads storage cards more smoothly, stable and wear resistant.3. EXCELLENT COMPATIBILITY: Optical drive simulation board card has 100% game compatibility, perfect running original for GDI image, and compatible for CDI image. High and stable performance ensures that you enjoy your games and effectively improve the benefits.4. EASY TO INSTALL: Game optical drive simulation board card is easy to install, you can remove the original optical drive holder and replace it with for GDEMU, no need to solder, no need to modify the machine board. No harm to the host.5. PERFECT REPLACEMENT: For GDEMU is a replacement for the storage card based optical drive in for Dreamcast hosts. for GD ROM, for CD ROM drives will inevitably wear out and fail (like all mechanical devices).Specification:Item Type: Game Optical Drive Simulation BoardProduct Material: ABS, PCBColor: Translucent BlackVersion for GDEMU: V5.15bSimulation Board Holder Interface Height: Approx. 8mm/0.31inApplicable Products: for DreamCast VA1 Game Console (for GDEMU Expansion Adapter) for GDEMU V5.5 GDEMU V5.15 GDEMU5.15BUpgrade: Changed The Storage Card Holder, Full Metal Card Clip, Read Storage Card More Smoothly, StableFeatures: 1. Robust and Durable2. Effective Improvement of Ventilation and Heat Dissipation3. With Extended for GDEMU Storage Card Box4. Alternative CD ROM Drive Chassis5. Storage Card Memory Card Slot6. Quick Switch Game Button.Package List:1 x Optical Drive Board3 x Retainer2 x Heat Sink1 x Drive Tray Insert1 x Buttons1 x For GDEMU Board Mounting Bracket1 x Storage Card Extension Cable1 x Screw Kit1 x Instruction ManualNote:You can install DC host for VA1 motherboard, otherwise it will burn for GDEMU! Remember not to plug and unplug for for GDEMU with power on, must be careful.