Lenovo 8GB DDR4 2666MHz ECC RDIMM Memory at Amazon.com
OLOy DDR4 RAM 8GB (1x8GB) 2400 MHz CL17 1.2V 260-Pin Laptop Gaming SODIMM for Intel (MD4S082417IZSC) at Amazon.com
G.Skill Trident Z RGB Series 16GB (2 x 8GB) 288-Pin SDRAM (PC4-25600) DDR4 3200 CL16-18-18-38 1.35V Dual Channel Desktop Memory Model F4-3200C16D-16GTZR at Amazon.com
Amazon.com: Memoria RAM DDR4 8GB
8GB (1x8GB) DDR4-2133MHz PC4-17000 2Rx8 1.2V SODIMM Laptop Memory by NEMIX RAM at Amazon.com
Amazon.com: Crucial 8GB Single DDR4 2666 MT/s (PC4-21300) SR x8 DIMM 288-Pin Memory - CT8G4DFS8266 : Everything Else
Crucial RAM 8GB DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory CT8G4SFRA32A at Amazon.com
Astra-Gear 8GB(1x8GB) 2666MHz DDR4 Unbuffered Non-ECC U-DIMM Upgrade for Desktop Memory Ram 1.2V CL19 260-Pin(AHD19S8G26S) at Amazon.com