Thank you for viewing. This is the AKAI MB76 Programmable MIDI Patch Bay. This is a rack-type MIDI-controllable line mixer and patch bay. It allows you to freely combine level adjustments and routing (arrangement of equipment, serial, parallel, effect sound and original sound output, etc.) of the connected equipment, and can store 32 memories in the main unit, which can be recalled via MIDI. It's common to see effectors being rearranged and recalled with a switcher, but that only rearranges them in series. You can't do level adjustments or parallel output of reverb, delay, original sound, distortion, etc. Equipment with such flexible functions is only found in professional multi-effectors (which are very expensive). This is highly recommended for those who are having trouble building a rack system. The condition shows some signs of use on the exterior, and the top surface of the input 7 knob has been repaired (I repaired it because the top surface was missing when I purchased it). The operation of inputs 1-7, outputs 1-6, the patch bay function, and the MIDI in function have been confirmed to work without any problems. The item includes the main unit and the instruction manual (copy in English, please translate with your smartphone). Please understand that this is a used item and no returns or claims are accepted.