Behringer 921B, Eurorack Module, Analogue VCO / LFO, Octave selector and fine-tune control, Outputs for sine, triangle, sawtooth and square/pulse, Hard- and soft-sync selector switch, 2 FM inputs (AC and DC coupled), Link inputs for pitch and pulse width (for control by 921A module), Current consumption: 45 mA (+12 V) / 45 mA (-12 V), Width: 8 HP, Depth: 40 mm