CD-rom drive installation, support more than 90% of the common market case; Alarm temperature can be set manually, the range is 40 degrees to 90 degrees. When the computer temperature exceeds this range or the fan is stuck, the alarm will sound automatically, which can effectively avoid the damage of computer hardware due to overheating; The computer temperature can be adjusted by manually setting the fan speed down/up; Intelligent detection of computer temperature, when the computer CPU temperature is too high or the detection point temperature is too high, automatically reduce the movement and increase the fan speed, when the computer idle or detection point in the standard range of automatic fan speed, reduce fan noise; Computer fan controller support perpetual calendar time display, very convenient and practical