COMPATIBILITY
iMac 21.5" A1418
iMac14,3 Late 2013: ME086LL/A (2.7 GHz Core i5)
iMac14,3 Late 2013: ME087LL/A (2.9 GHz Core i5)
iMac14,3 Late 2013: ME087LL/A (3.1 GHz Core i7)
iMac14,4 Mid 2014: MF883LL/A (1.4 GHz Core i5)
iMac14,3 Late 2013: ME086LL/A (2.7 GHz Core i5)
iMac14,3 Late 2013: ME087LL/A (2.9 GHz Core i5)
iMac14,3 Late 2013: ME087LL/A (3.1 GHz Core i7)
iMac14,4 Mid 2014: MF883LL/A (1.4 GHz Core i5)
iMac16,1 Late 2015: MK142LL/A (1.6 GHz Core i5)
iMac16,2 Late 2015: MK442LL/A (2.8 GHz Core i5)
iMac16,2 Retina 4K Late 2015: MK542LL/A (3.1 GHz Core i5)
iMac16,2 Retina 4K Late 2015: MK542LL/A (3.3 GHz Core i7)
iMac 27" A1419
iMac14,2 Late 2013: MD088LL/A (3.2 GHz Core i5)
iMac14,2 Late 2013: MD089LL/A (3.4 GHz Core i5)
iMac14,2 Late 2013: MD089LL/A (3.5 GHz Core i7)
iMac15,1 Retina 5K Late 2014: MF886LL/A (3.5 GHz Core i5)
iMac15,1 Retina 5K Late 2014: MF886LL/A (4.0 GHz Core i7)
iMac14,2 Late 2013: MD088LL/A (3.2 GHz Core i5)
iMac14,2 Late 2013: MD089LL/A (3.4 GHz Core i5)
iMac14,2 Late 2013: MD089LL/A (3.5 GHz Core i7)
iMac15,1 Retina 5K Late 2014: MF886LL/A (3.5 GHz Core i5)
iMac15,1 Retina 5K Late 2014: MF886LL/A (4.0 GHz Core i7)
iMac15,1 Retina 5K Mid 2015: MF885LL/A (3.3 GHz Core i5)
iMac17,1 Retina 5K Late 2015: MK462LL/A (3.2 GHz Core i5)
iMac17,1 Retina 5K Late 2015: MK482LL/A (3.3 GHz Core i5)
iMac17,1 Retina 5K Late 2015: MK482LL/A (4.0 GHz Core i7)
IMPORTANT: macOS 10.13 High Sierra (or later OS) must be installed on the host computer BEFORE installing this SSD for the first time. You will need your original Apple SSD in order to do this. These OS versions include an EFI firmware update for your Mac. Without the update, the computer will not recognise the SSD. This process is separate from and should precede the other processes described here. Note that when installing the OS onto the drive itself, macOS 10.13 or later is also required.
SSD INSTALLATION: