1 Output Power Supply with 2 Ranges: 8V / 8A or 20V / 4A, 80W, GPIB and RS-232 Interfaces standard. The E3644A Power Supply is a programmable 80-watt single-output, dual-range supply. Built-in GPIB and RS-232 connectivity and SCPI language compatibility make it easy to create flexible power programs. For general purpose use, this programmable power supply offers the performance of a system power supply at a surprisingly affordable price. The unit is rated 8V @ 8A or 20V @ 4A. Regulation: 0.01% Metered Programmable SCPI compatible Over-voltage protection and remote sensing Low noise and excellent regulation Front and rear output terminals