G.Skill RipJaws V Series 8GB (1 x 8GB) 288-Pin SDRAM (PC4-21300) DDR4-2666 CL19-19-19-43 1.20V Dual Channel Desktop Memory Model F4-2666C19S-8GVR at Amazon.com
NeweggBusiness - G.SKILL NT Series 8GB DDR4 2400 (PC4 19200) Desktop Memory Model F4-2400C15S-8GNT
G.SKILL Value Series 8GB DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C19S-8GNT - Newegg.com
Amazon.com: G.SKILL 8GB Ripjaws V Series DDR4 PC4-19200 2400MHz for Intel Z170 Platform Desktop Memory Model F4-2400C15S-8GVR : Electronics