It's hot for me so the cooling block may work better in cool weather, but just plugging it into the PS4 and turning it on will cause one overheating This makes my system hotter than when unplugged. In addition, the fans are very weak; I couldn't even tell they were spinning until I put my hand on them, and then all I felt was a faint puff of air. Again, this may be because the hot weather doesn't work that well, which is why I'm giving it two stars. However, that doesn't make up for the poor airflow and the cooling block itself, which caused my PS4 to overheat before I even started playing. Even the supposed "turbo" speed is incredibly weak - there is literally no difference between turbo and normal speed. DO NOT BUY for any reason other than a low fan speed cooling system.