While the 120mm and 140mm form factor dominates the fan market, there are times when other sizes are needed. PC cases are more and more often coming with mounts for larger 200mm fans, and smaller applications like graphics card cooling and chipset cooling all for fans smaller than the common 120mm. Radiator manufacturers also offer their products for special-case uses like SFF and extreme cooling. Radiators on the market today can utilize fans from as small as 40mm to as large as 200mm.
If you need a fan in a size other than what have become the two standards, TITAN RIG’s selection can help.