Arturia KeyLab Essential 88 mk3 is a full-size MIDI controller designed for studio production, live performance, and software integration. It features an 88-note semi-weighted keyboard with velocity sensitivity and aftertouch, eight RGB velocity- and pressure-sensitive pads, nine faders, nine rotary encoders, and pitch/modulation wheels for hands-on control. The controller includes a built-in arpeggiator, chord mode, and scale mode, as well as integration with supported software using custom scripts, NKS compatibility, and MCU/HUI support. USB-C and MIDI DIN connectivity, pedal inputs, and six user presets allow flexible setups, while the use of recycled materials in construction and packaging supports environmentally conscious design.