922-9151 Apple iMac 27" CPU Fan, (A1312) - Late 2009, (A1312) - Mid 2010, (A1312) - Mid 2011 This is the CPU Fan for the 27" iMac. Compatible with, iMac 27" 2.66GHz Core i5 (A1312) - Late 2009; iMac 27" 2.93GHz Core i7 (A1312) - Mid 2010; iMac 27" 3.4GHz Core i7 (A1312) - Mid 2011. A genuine Apple product. 100% customer satisfaction.