Features: The version of GDEMU is V5.15. Replacement part for your faulty optical drive emulation board. GDEMU optical drive simulation board, get rid of the sound of optical drive sawing, reading speed qualitative leaping, just enjoy game playing. Easy installation, just remove original optical drive holder and replace it with gdemu, without welding, without any modification to machine motherboards(do not use an adapter card sleeve, and it is suggested to use a large capacity SD-card). Excellent game compatibility, perfect to run original GDI-mirror, and compatible for CDI-mirror image. Specifications: Material: Plastic Applicable Model: for SEGA Dreamcast Game Console VA1 Main Board Note: This GDEMU optical drive simulation board card suitable for Sega DreamCast game console VA1 version host. Please do not to insert or un-plug for GDEMU with power on, be careful. Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different display resolution. Package includes: 1x GDEMU Optical Drive Simulation Board