I currently have a CM sickleflow in the back towards the top of my case and a 200mm coolermaster fan on the top right by it as exhaust and in the front a 200mm Cooler Master as intake. My sickleflow is quite loud so I decided I would like to get a new fan to replace it that is almost silent (quiet is the priority) and moves a good amount of air. I have in mind a corsair af120 quiet addition but idk if that is the best I can get. My budget is about $20 give or take and my rig is in my sig thanks for any help