Fits RPi nicely once I figured out how to maneuver it in place. Room for heatsinks. Fan can be heard but isn't very loud. I installed the fan so it blows air down onto the RPi. Thought I'd mention the airflow direction because I didn't notice it mentioned before, perhaps it may have an affect on how loud the fan is. I'm not energetic enough to disassemble mine to check as I'm happy with it as is.