E-MU Vintage Keys plus, E-MU Classic Keys, and a YAMAHA MV802 set. MIDI keyboard connected and operation confirmed. Manual included. Please consider the MV802 as a bonus. All 8 channels have been checked, and no major crackling is currently apparent. Effect return untested. The 4U rack is also included. I think this is a rare model that is not often listed. If you are looking for one, please take this opportunity. Thank you.