The Yamaha MODX8 is an 88-key lightweight performance synthesizer (13.8 kg / 30 lb 7 oz) featuring a Graded Hammer Standard (GHS) keybed,Motion Control Synthesis Engine, and 128-note AWM2 polyphony. It boasts 5.67 GB of preset waveform memory, 1 GB of user flash memory, and extensive FM-X synthesis capabilities, designed for studio-quality sound in a portable format.