The PAC2000S12-B1 supports AC input of 90 V to 264 V and HVDC input of 180 V to 300 V. The PSU provides one output (three output modes: MV12, SV12, and MV6). The rated output power is 2000 W. The PSU supports hot swap, current sharing, and 1+1, 2+2, or 3+3 parallel connection. The PSU provides an I2C communication function, and can report information such as the manufacturer, model, and version. It provides a black box and supports online upgrade of primary side and secondary side. The PSU is designed in strict accordance with safety requirements and meets the requirements of information technology equipment safety standards.