The Roland MKB-300 is a MIDI keyboard controller designed for use with computers and other MIDI-compatible devices. It was released in 1984 and has been used by many professional musicians, producers, and composers. The MKB-300 features 76 full-size velocity-sensitive keys. It also has a pitch bend wheel, a modulation wheel, and a sustain pedal input. The MKB-300 can be used with any MIDI-compatible software or hardware. It is also compatible with most popular DAWs, such as Ableton Live, Logic Pro, and Pro Tools.