Intel P4 CPU Fan Socket 775 Specifications: Intel Heat Sink with Fan delivers the cooling performance your CPU needs! Featuring an aluminum heat sink， it has a 3.5-inch fan and supports Intel Pentium 4 Socket 775 CPU's up to 3.2 GHz! Intel Socket 775 Aluminium Heat Sink with Fan 3.5-inch fan Supports Socket 775 Intel Pentium 4 up to 3.2 GHz 4-pin fan connector