They provide you with 2 empty spaces for 2x 120mm fans yourself. I would suggest getting any fan that would make little noise yet blows somewhat high CFM. Keeping your hard drive cool is a key to longer hard drive lives.
BTW, I already have this case sitting in my bedroom waiting for my next build which is in my sig and supposed to be completed within a month or 2. Anymore questions, I would gladly answer them.