1. Easy to Install: v5.20 (v5.20.3) For GDEMU, easy to install, no need to weld and modify the machine board. 2. For GDEMU Optical Drive Analog Board: Remove the sound of the optical drive, and read the speed of the DC game console board. Replacement parts of the faulty optical drive emulation board. The maximum memory card accepted is 512 GB. 3. Functions: System code update, automatic timing configuration file of SoA and RE: CV. The INI option manually limits For GDEMU speed. 4. : Only applicable for DreamCast DC VA1 Console motherboard, otherwise For GDEMU will be . Using the connector will not damage the console. The white interface height of For GDEMU is about 8mm. Due to different batches, the appearance, color and printed words of the product , which will not affect the use. Colour:C:Transparent black + black Material:PCB Package Contents: 1 x Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.