RAM & Memory Upgrades
Crucial CT2K8G4SFS8266 16 GB Kit (8 GB x2) (DDR4, 2666 MT/s, PC4-21300, Single Rank x8, SODIMM, 260-Pin) Memory
Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology matures Increase bandwidth by up to 32 Percent Reduce power consumption by up to 40 Percent Faster bursts access speeds for improved sequential data...
https://www.bizrate.co.uk/ram_memoryupgrades/crucial-ct2k8g4sfs8266-16-gb-kit-oid8654020979.html