Features: High Quality The fan speed controller can manually and automatically control the speed, effectively preventing computer hardware from being damaged by overheating - it can reduce the speed when the temperature is high and the fan is abnormal, and it can also be adjusted by manually setting the fan speed to adjust the computer temperature. Control and monitor the speed and temperature of 3 sets of fans Large screen LED display - display date, for time, temperature, etc., you can understand the computer's working conditions. Installed in 5.25 inch hard disk, suitable for more than 90% of computer cases High temperature industrial ABS material. In the initial state, press and hold SPEED SW for 3 seconds to display, and all patterns will be displayed. Specifications: Material: ABS Size: Approx. 10cm x 14.9cm x 4.2cm / 3.94" x 5.86" x 1.65" cpu/for hd/sys temperature probe Three channels can control up to 3 fans 5c-90c adjustable alarm PC thermostat, switch: mode, speed, alarm (displays c/f) Output: 5-12v 8W per channel Note: 1.Please allow 1-2cm error due to manual measurement, please make sure you do not mind before ordering. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.