Suitable for 9cm, 12cm fans, and has good compatibility with most graphics cards. Practical fan accessories for computer project DIY. PCI slot fan mounting bracket is simple in design and easy to operate. It is equipped with matching fixing screws and fasteners for easy installation. Made of high-quality metal materials, fine workmanship, black paint surface, beautiful appearance, rust and corrosion resistance, durable. Can effectively improve the cooling effect of the system and reduce the noise of PC case to obtain more powerful performance. Comes with one PCI slot bracket and two fan connectors for installing dual PC cooling fans in one PCI slot bracket.