Amazon.com: v-Color DDR4 8GB (8GBx1) 2666MHz (PC4-21300) CL19 Standard Desktop Computer PC Ram Memory Module Non ECC Unbuffered DIMM 1.2V(TD48G26S819-VC) : Electronics
Timetec 16GB KIT(2x8GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1 / 20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display, Late 2018 Mac Mini (8,1) PC4-21333 / PC4-21300 MAC RAM at Amazon.com