HDE MacBook Replacement Internal Cooling Fan Heat Dissipation for 13" Apple Mac Pro Model A1278 Laptop Replacement cooling fan designed to fit MacBook Pro 13.3" Unibody Model A1278 Perfect fix for your noisy Macbook Pro fan or excessive speed Laptop CPU fan features efficient heat dissipation and low noise Compatible with Macbook Pro 13" model released from 2008-2012 Replaces Apple part number 661-4946