Drop in, easy to use replacement for supply (no modifications necessary).More space inside for DreamCast for other mods.for DreamCast PSU is compatible with all regions and all versions for DreamCast.It works with both, I personally use it in 2 different consoles, one with a GDEMU and one without.Descriptionfor DreamCast PSU is a simple, quick-install backup supply for DreamCast that not only reduces heat inside your console from the supply, which can help extend the life for DreamCast, but also frees up some much needed internal space for any other mods you may have or want to install. It is also fully compatible for GDEMU and USB-GDRom as well as the for DreamCast GDROM disc drive.size:12x9x2cm Material:PCBcolour:WhitePackage Contents:1 x BoardOnly the above package content, other products are not included.Note: Light 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.