This is a used Roland JU-06 Sound Module.
Sometimes described as one of the last great synths of the analog era, the JUNO-106 became a favorite thanks to its warm sounds and instant sound-shaping ability. The new 4-voice JU-06 module continues this approach, with 23 parameters controllable via the front panel and that classic JUNO sound – complete with the much-loved JUNO chorus effect.
This Roland JU-06 is in excellent condition.