Currently, my RAM is
G.SKILL RipjawsV Black 16GB [2x8GB 3000MHz DDR4 CL15 rev2 DIMM]
, or at least that's what the store calls it. I plan to expand it from 2x8 to 4x8. To do that, my selection is from the following two:G.Skill Ripjaws V, DDR4, 16 GB,3000MHz, CL15 (F4-3000C15D-16GVGB)
G.Skill Ripjaws V, DDR4, 16 GB,3000MHz, CL15 (F4-3000C15D-16GVKB)