Excerpt: The Yamaha MOX8 is a hammer action synth that has 88 keys. This is one of the best user friendly synth workstations that I have used. It has a built in interface with 4 in and 2 out inputs. There are over 6 thousand arpeggiator pattern presets on the Yamaha MOX8. It is very easy to find the sound that you are looking for on the Yamaha MOX8 because it has a category search option.