As a step up in sound creation from the SMK49, the SMK61 offers 61-Keys as a USB/MIDI Controller Keyboard Compatible with Microsoft Windows, MacOSX/OS and most Sequencer Softwares. This controller gives you a multitude of features including assignable pitch bend and modulation wheels with a pedal, 8 rotay knobs and a slider. With adjustable velocity, curve and external pedal curve you can easily get the sounds you need to make. With USB, Midi and 12V power inputs it s easy to connect to - please be aware that power supply is not included.