I have the RAID version of this board and can connect three. One to the chassis, One right near the CPU and one to the left (or right depending on which way you look, away from the USB ports and stuff) of it. Don't know if yours is different or not. If you really want/need more fans you can buy some 3 to 4 pin convertors and attach the fans directly to the PSU. That's why I have about 10 fans right now. Granted it sounds like a jet but that's ok.