First : I can not offer any warranty about this thing. If you use it it's to you check if it fit your need. Having a passive cooling Xeon Phi but need an active one ? This can be a solution.The fixation to the coprocessor is done by four M3x10 bolts, fixations of fans are done by eight 3mm wood screw (see the picture). Nut's space in the shape is a bit small, this help holding the bolts when fixing the adaptor on the coprocessor. The insertion can be done with pliers or by screwing (see the pictures).