Intelligent and automatic.Automatic mode cooler turns on when your PlayStation 4 gets hot and turns down when it gets cool again.Normal speed for decent gaming.Turbo speed for really heavy games and hardcore gamers. Necessary for PS4 Edition game enthusiasts.Cool your devices, no need to worry about your ps4 overheating and burning your table from long hours of game play. High efficiency.Turbo speed for hardcore gamer,you will never wait for your exciting time. Novel and handy appearance.The body employ the all black color,so can match your cool style. Works smooth and quiet, portable to carry and easy to us for PS4 Edition console