RAM & Memory Upgrades
Timetec Apple DDR3 1333MHz PC3-10600 Unbuffered Non-ECC 1.5V CL9 2Rx8 Dual Rank 204 Pin SODIMM Apple Memory Ram Module Upgrade (32GB Kit(4x8GB))
DDR3 1333MHz PC3-10600 204 Pin Unbuffered Non-ECC 1.5V CL9 Dual Rank 2Rx8 based 256x8 Module Size: 16GB Package: 2x8GB
https://www.bizrate.co.uk/ram_memoryupgrades/timetec-apple-ddr3-1333mhz-pc3-10600-oid24390669715.html