Features 1.Premium Material: The optical drive simulation board uses premium materials, replaced the storage card holder, all metal card holder, with two heat sinks, reading the memory card more smoothly, stable and wear resistant. 2.Perfect Compatibility: Optical drive board is suitable for SEGA Dreamcast console VA1 (expansion adapter for GDEMU). High and stable performance ensures you enjoy your game. 3.Practical to Use: for GDEMU is an alternative to memory card based optical drives in for Dreamcast hosts. Effectively solve the problems caused by wear and failure of for GD ROM or for CD ROM drives. 4.Easy to Install: The optical drive simulation board is easy to install. The original optical drive can be removed and replaced with for GDEMU without soldering or modifying the machine board. No damage to the host. 5.Cautions: Optical drive simulation board can install DC host for VA1 motherboard, otherwise it will burn out for GDEMU! Remember not to plug and unplug for GDEMU when power is on, be careful. specificationItem Type: Optical Drive Board Material: PCB Height of Seat Interface: Approx. 8mm/0.31in Version of for GDEMU: V5.15b Applicable Products: for for Dreamcast VA1 Game Console (Expansion Adapter for GDEMU) for GDEMU V5.5, for GDEMU V5.15 and for GDEMU 5.15b Features: 1. Robust and Durable 2. Effective Ventilation and Heat Dissipation Improvement 3. with Extended for GDEMU Storage Card Cassette 4. Replacement Storage rom Drive Chassis 5. Storage Card Memory Card Slot 6. Quick Switch Game Button PackageList 1 x Optical DriveBoard 3 x Fixer 2 x Heat Sink Note1. Please allow some errors due to manual measurement. 2. Please do not upgrade the firmware, this is the latest firmware version, if you upgrade the firmware, it will be permanently paralyzed.