Amazon.com: OWC 8GB (2 x 4GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S08P) : Everything Else
For sale Memory RAM G.Skill Ripjaws V 8GB 4x2 DDR4 2666 mhz | USD 35
OLOy DDR4 RAM 8GB (1x8GB) 2666 MHz CL19 1.2V 260-Pin Laptop Gaming SODIMM for Intel (MD4S082619IZSC) at Amazon.com