We produce three different types of 20-channel driver boards for deformable mirrors. These boards have gain of 59, 35, 81, providing output voltage swing [0...400V] for input range [0...10V] in a frequency range up to 10 kHz (depending on the load capacitance). One board will drive one 19-channel deformable mirror, two boards will drive a 37 or 39-channel mirror. In addition, we can fabricate custom 20-channel drivers for voltage range [-400...+400V] for capacitive loads of up to 20uF.