AeroCool Touch-E Fan and Temperature Controller with Card Reader (CoolTouch-R) Controls 4 sets of fan speed individually and monitor System Temperature USB3.0 port and 1 card reader port supporting SD type, MMC Types, and T-Flash type memory card. 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 and monitor System Temperature USB3.0 port and 1 card reader port supporting SD type, MMC Types, and T-Flash type memory card. 7 LED backlight colors selection or turn off backlight completely Innovative "Touch" LCD technology Power on/off for each individual channel Celsius/Fahrenheit switch for system temp. display 3 Speed setting - Low/Mid/High Fan working display