Triple-output programmable DC regulated power supply with LED display features 2 variable 0-30V/0-3A outputs plus one 5V/3A fixed output with both coarse and fine adjustment, 10 mA / 1 mV resolution over the full range Run the variable outputs independently and simultaneously or connect them in series to double the maximum voltage output to 60 V or connect them in parallel to double the maximum current output to 6 amps. Pro-level precision and accuracy with low noise and low ripple, plus built-in memories to easily and effortlessly store and access your frequently-used settings to save time and improve productivity USB interface enables remote control, operation, data exchange via a computer (Windows PC only), software and USB cable are included Automatically shut-off to prevent damage to the connected load with Over Current Protection (OCP), cooling fan with thermo sensor, output sockets with insulation protection, and overload fuse protection ensure operational and personal safety, CE certified