The Roland MKS series were generally rackmounts or "super" versions of their keyboard instruments. MKS-7 rackmount multitimbral Juno-106 MKS-10 piano module MKS-20 piano module MKS-30 Planet-S rackmount JX-3P (programmer: PG-200) MKS-50 rackmount Alpha Juno (programmer: PG-300) MKS-60 ??? MKS-70 Super JX rackmount JX-10 (programmer: PG-800) MKS-80 Super Jupiter (programmer: MPG-80) MKS-100 rackmount S-10 sampler mike