CMS 4GB (2X2GB) DDR3 10600 1333MHZ NON ECC SODIMM Memory Ram Upgrade Compatible with Apple Imac 'Core I5' 2.5 21.5-Inch (Mid-2011) - A45

Computer Memory Solutions guarantees compatibility with models provided in description. Memory Type: SODIMM, 204-Pin Speed: DDR3-10600, 1333 MHz 2 Piece Kit Product appearance may vary. Picture for reference only. limited lifetime warranty when bought directly from computer memory solutions