excellent little midi piano module. fits in a half rack space. contains 32 different sounds- some very nice piano sounds and a few organs and strings/pads mixed with pianos. unit is in super excellent condition and works perfectly! it only has a few scratches at the botton, but that's it! i have always taken good care of the unit, and it has been used very little in a smoke and pet free home studio environment. the power supply is missing but i tested it with a power supply from another unit, and everything works perfectly. - it would be easy to find a replacement power supply. the manual is included.