HP 8GB (1x8GB) Dual Rank x8 DDR4 2133 MHz 288-pin DIMM RAM Module SDRAM (726718-B21 ) at Amazon.com
RAM] Pioneer DDR4 8GB(1 X 8) 2666MHz (PC4-21300) CL19 1.2V 288-Pin Desktop Memory UDIMM - Amazon UK - £28.99 - Get 2 for the price of 1. : r/buildapcsalesuk