Rohde amp schwarz hmc804x series 32v 100w single output bench psu rohde amp schwarz 35931012k02 the rohde amp schwarz hmc8041 g is a single output bench power supply unit with gpib interface this power supply has a high specification and a wide range of functions which are ideal for use in development labs and industrial environments thanks to its high energy efficiency the linear power supply remains cool and quiet even at maximum load the hmc8041 g has a maximum power of 100w