The Novation UltraNova is a 37 key synth that can be used as a USB controller or even an audio interface if the user wants. All of the keys are velocity and touch sensitive. There are MIDI in MIDI out and MIDI thru connections on the UltraNova synth, I used it right along with all of the other MIDI gear and had it hooked up with my MIDI sport to use as a controller for a while in Cubase.
There are 2 ¼ jack inputs and 2 ¼ jack outputs. There are 2 more inputs for headphones and aux inputs. I have noticed that there is a sustain pedal input and a expression pedal inputs on it too but I have not used those features yet.
There are some really good effects like the chorus, delay, reverb, distortion and a few other ones. The arp function on the UltraNova is very easy to work with and customize. The only thing that upset me with this board is that there are no expansion abilities. It would have been nice to expand it down the right. The UltraNova can be bus powered and it can also work via DC wall plug in.
One great feature with this board is that you can use it as a VST and record MIDI data and audio at the same time. It is very easy to set it up in your DAW as an AU channel or a MIDI input channel. This synth is very affordable and has great features; it is easy to use and work with and has never let me down. Have been using it for years and it has worked flawlessly. It came with a manual that explained everything and there are even a lot of videos online to help new users understand the works of this board.