Features: 1The rare CPU fan speed controller with aluminum-magnesium alloy panel has undergone multiple matt surface treatments and is suitable for any chassis. 2Equipped with a wide LCD screen, 4 sets of fan speeds, 4 sets of temperatures are displayed on the LCD screen, so you can see the computer work at a glance 3With a dual safety system with high temperature alarm and fan anti-seize. When the computer temperature exceeds 60 degrees, the temperature icon flashes and an alarm sounds. 4Use PWM circuit to adjust speed to reduce high frequency noise, and at the same time reduce noise by reducing fan power 5High-specification capacitors are resistant to high temperatures, have a longer service life, and refuse damages such as electricity running and leakage Package included: 1 x Controller 1 x User Manual&nbsp 4 x Screw 2 x Sticker