Programmable DC Power Supply 30V / 1.5A / 45W, Dual Channel, Unit with USB and GPIB Interfaces. The Keithley 2220G-30-1 is a programmable DC Power Supply with two channels (30 V / 1.5 A / 45 W) and with USB and GPIB interfaces. Dual output model with 2x 30 V / 1.5 A / 45 W All channels are independently controlled and have isolated outputs All channels have remote sensing Two 30 V channels can be combined either in series to double output voltage or in parallel to double output current 0.03% basic voltage output accuracy and 0.1% current accuracy Low noise, linear regulation with <3mVpp ripple and noise Voltage and current outputs for all channels are displayed simultaneously Keypad entry allows fast, precise entry of output values USB interface standard for remote control, "œG" versions include USB and GPIB interfaces