So.. I¨'m in need of another case fan for my CM Elite 430 Black case (It's the version with a window in the side panel). It already has 1 120mm blue LED fan installed in the front, and I would like to stick another fan on the back to improve the airflow. I'm looking for something with blue LEDs to match the current fan, so I won't be buying the Gentle Typhoon and the Noctua thingy, although they're nice fans.
I've been looking into the Cooler Master R4 as it seems like a nice and quite fan that provides a good airflow. Have anyone used them? How much noise does it make compared to the airflow, and how much does the LED light up?
I'm also open to suggestions if anyone could recommend another fan (preferably the same price range)