32Gb (4X8Gb) Ram Memory Compatible with Apple Imac Core I5 3.2 27" (5K, Late 2015) Mk462Ll/A By CMS A4 204pin DDR3 SODIMM 1866 MHz LPDDR3 SDRAM (PC3-14900) DDR3-PC14900 DDR3-PC1866MHZ 4PCS KIT