AeroCool Touch-E Fan and Temperature Controller (CoolTouch-E) Controls 4 sets of fan speed individually Support up to 20W per channel 7 LED backlight colors selection or turn off backlight completely Innovative "Touch" LCD technology Power on/off for each individual channel Controls 4 sets of fan speed individually Support up to 20W per channel 7 LED backlight colors selection or turn off backlight completely Innovative "Touch" LCD technology Power on/off for each individual channel Fan working display 3 Speed setting - Low/Mid/High