def METHOD_NAME(self):
    """
    Retrieves the high threshold PSU voltage output
    Returns:
        A float number, the high threshold output voltage in volts,
        e.g. 12.1
    """
    val = self.__read_txt_file(self.hwmon_path + "psu_mfr_vout_max")
    if val is not None:
        return float(val)/ 1000
    else:
        return 0