Mare Mare :
Alright , this one is for my case, ill buy that one. But wanted to ask some questions. Does every case fans are equal strong? I mean will i get better cooling if i buy some popular case fan which are more money and better rating? Or i will get same air strenght but less noise ?
Depends on the case fans itself
Take an example of a normal noctua fan, Its noiseless, brings huge air per second, and many people like it, the downside to it is it looks terrible (except if you want to build wooden PC), and you can buy a dinner for 3 with it (so expensive)
So it really depends on the manufacturer of the product, nothing is perfect, nothing is worthless, things has its own pros and cons, try researching better case fans that fits your pocket nicely, or more expensive one that is noiseless and brings its own little tornado