I purchased and used this about three years ago. There are no operational issues. The paint on the knobs of the controller section is slightly worn, but this does not affect its use. Accessories include a USB cable and the instruction manual. Please note that software is not included. This is an 88-key MIDI keyboard equipped with 8 control knobs and an LCD display. - Model Name: KEYLAB 88 - Brand: ARTURIA - Number of Keys: 88 keys - Control Knobs: 8 knobs - Display: LCD display Thank you for looking.