I use this pedal on my Korg Triton Studio. I have tried it on my Korg PA800, Korg Triton LE, Korg Prophecy and Korg Kronos 2 and it works well and I am really satisfied with it. I first bought a pedal from other manufacturer and it did not work properly. The thing is that older versions of synths, such as Triton Studio, Prophecy and Triton LE, do not have the option to calibrate any pedal. So if you buy any other pedal I assume that you will have issues with it is used on older synths. It may not work properly! I tried it on my Pa800 and Korg Kronos 2 and there you got a pedal calibration, so you got no issues with pedals from other manufacturers. The good thing is that you get a ?stereo? single cable with the pedal; this was not included in my other pedal. I found it hard to purchase this ?stereo? cable in any stores, at least here in Sweden. The length of the cable is very good as well. It is more than enough when I have a synth on top on my Spider Pro stand. You have the option, a switch, to adjust damper/expression impact but if you got options on your Keyboard I would recommend that you use them instead. It is a little bit plastic and it would be nicer if the cable was black, but for the price it serves its purpose more than well. The hinge mechanism feels plastic and rattling sometimes, but it is nothing that you notice so much on stage. I think it is nice with the KORG logo on front side, it basically looks better on stage if you have a Korg synth above ? I would recommend EXP-2 for anyone in need for expression control on their Korg.