Add additional chassis cooling with a 50mm ball bearing fan This versatile 50mm x 50mm x 15mm fan is an ideal replacement fan for keeping your computer running cool. The fan can be powered through a TX3 connection, & features a dual ball bearing design that ensures reliable cooling & longer fan lifespan. The fan can be used to replace the fan component of some CPU coolers or mounted to the side panel of a computer case & features a tachometer pin on the TX3 motherboard connector that provides the host system with fan operating status information. * A dual ball bearing design ensures reliability & longer life * Comes ready for either 3-pin motherboard fan headers or LP4 Molex power supplies * Backed by a Star Tech.com 2-year warranty & free lifetime technical support