This is a Roland Rubix24. Operation confirmed. I am a novice, so I cannot respond to detailed inquiries. I purchased this new several years ago, but I have hardly used it and have kept it in storage. This is a set of the main unit and cable. No price reductions, dedicated listings, or holds. Returns and complaints after purchase are not accepted. Please note that there may be oversights due to my amateur inspection. For those who understand that this is a used item. Thank you for looking.