RAM & Memory Upgrades
Crucial CT2K8G3S186DM 16 GB Kit (8 GBx2) (DDR3/DDR3L, 1866 MT/s, PC3-14900, SODIMM, 204-Pin) Memory for Mac
Increases Mac system performance Compatible with Mac systems All DDR3 and newer modules are lead and halogen-free Every single module extensively tested at the component and module level Available in SODIMMs, RDIMMs and ECC UDIMMs
https://www.bizrate.co.uk/ram_memoryupgrades/crucial-ct2k8g3s186dm-16-gb-kit-oid6664823824.html