I purchased the fan for a SilverStone Sugo 06 Lite. The fan should convey the warm exhaust air from the enclosure. Since the selection is generally limited to small case fans, I have resorted to this product from Noctua. The product is supplied with two adapters for speed control. To attach four rubber pins are supplied, as well as screws for conventional mounting. In general, the whole package is designed very elaborate. The installation designed easily. The pins are very robust and do not break. The fan falls in operation not to much. Only one air noise can be heard, but this may also be the overlying metal grille originate. The price for such a small fan is certainly quite high, but at least in my opinion justified by delivery and production quality.