The cabinet-type high-power switching power supply adopts a frame-type 3U chassis, which is convenient for equipment integration and installation. Four-digit LED visually displays voltage, current, output power and output equivalent impedance, with 10mV/10mA resolution; coding switch digitally controls the output size, which is convenient and durable; with short circuit, overvoltage, overcurrent, overpower, reverse polarity protection Function. High output efficiency, one-button control output on-off switch, convenient and safe. Standard RS232, RS485 and USB serial port communication, support MODBUS RTU protocol, realize automatic control; widely used in cabinet equipment integration, product aging test, battery charging, experimental test, production test, electrolytic plating and other industries;