Amazon.com: Crucial 8GB Single DDR4 2400 MT/S (PC4-19200) SR x8 SODIMM 260-Pin Memory - CT8G4SFS824A : Everything Else
Amazon.com: OWC 32GB (2 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S32P) : Everything Else
G.Skill Ripjaws V Series 16GB (2 x 8GB) 288-Pin SDRAM (PC4-19200) DDR4 2400 CL15-15-15-35 1.20V Dual Channel Desktop Memory Model F4-2400C15D-16GVR at Amazon.com
16GB (1x16GB) DDR4-2400MHz PC4-19200 1.2V SODIMM Laptop Memory by NEMIX RAM at Amazon.com