Apple 661-2658 256MB DDR-266MHz PC2100 Non-ECC Unbuffered CL2.5 184-Pin UDIMM 2.5V Single-Rack x8 Memory Module

Apple MB983G/A 8GB DDR3-1066 PC3-8500 240-Pin UDIMM CL7 Dual Rank x8 Unbuffered Memory Module

Apple 661-7883 4GB DDR3-1600MHz PC3-12800 Non-ECC Unbuffered CL11 204-Pin SODIMM 1.5V Single Rank Memory Module

Apple 661-7105 4GB DDR3-1600/PC3-12800 SODIMM 204-Pin CL11 Dual Rank x8 Non-ECC Unbuffered Memory Module