There are lots of places to put fans. 7 to be exact. You can mix and match 120mm and 140mm fans. This comes with 2 Fractal Design Silent Series fans. These are some of the quietest fans I have used.
This case will definitely keep the components cool.
I used this case in my last APU build and prefer this over the newer R4. With the R4, you had to open the front panel to allow airflow from the front. The R2 has no such blockage.
So far in my build:
-AMD A10-7850K APU
-AMD RG2133 16GB Gamer Series RAM
-Gigabyte GA-F2A88X-D3H Motherboard
-Sandisk 128GB SSD
-Western Digital 1TB 7200RPM HDD
-Fractal Design Tesla R2 650-Watt 80 PLUS Gold Certified ATX12V/EPS12V 650 Power Supply FD-PSU-TS2B-650W
-Fractal Design Define R2 Case