Doepfer A-121-3, Eurorack Module, 12 dB multimode VCF, Controls for filter frequency, modulation depth, resonance and input level, CV inputs for filter frequency (2x) and resonance, Outputs for low pass, band pass, high pass and notch, Current consumption: 40 mA (+12 V) / 30 mA (-12 V), Width: 4 HP, Depth: 50 mm