I have the fan in a free PCI slot inserted next to my video card. The installation is very easy, you can either the fan to a power supply for IDE disks / drives (the cables have to connected to the terminals, the flattened corners) or, if one has a free Sysfan port, connect with the latter. That's all there really is not to say that the graphics card stays cool, my entire system temperature has decreased by ~ 10 °. Highly recommended for the price very. The only drawback: The Sysfan cable that is permanently connected to the fan is very short.