Well I have this green plastic thing mounted to one side of my casing to capture all the air and make sure it goes out the vent. I measured it up and the thermaltake one should just fit without touching it (it is too wide to fit in it). However looking at the dimensions of the arctic cooling one it wont fit. So I think I'll go for the thermaltake one. I'm sure it will be quieter than the one which I currently have.