The Roland Saturn-09 is a synthesizer module released by Roland in 2019. It is a digital synthesizer with a hybrid architecture, combining the classic analog sound of the Jupiter-8 with the modern digital sound of the JD-XA. It features two oscillators, two sub-oscillators, two filters, two LFOs, two envelopes, and a modulation matrix. It also includes a built-in arpeggiator and a built-in effects processor.