We provide 3d printing and shipping services for: An enclosure for this open source adapter PCB: https://oshpark.com/shared_projects/qSqtcGAw Use a standard DB15 male connector for the Neo Geo half and the female plug end from a Sega Genesis / DB9 extension cord, salvaging the strain relief from the unused male end. Other things you may want to get are a mini slide switch SPDT to toggle between Megadrive/Master System mode and four 2.5m 8mm screws to keep the enclosure held together. A tip to put this all together nicely: place the DB15 connector and slide switch into place on one enclosure half, then slide the PCB into position and tack solder in. Only printed parts, hardware NOT included.