parts-quick 8GB Memory Module for Alienware m17 R3 Compatible DDR4 2667MHz SODIMM RAM at Amazon.com
Apple Memory Module 16GB DDR4 2666MHz SO-DIMMS (2x8GB) - Apple
ADATA 8GB (1x8GB) Single Channel (DDR4 2666/19.0/1.2v) - AD4U266688G19-SGN at Amazon.com
Timetec 32GB KIT(2x16GB) Compatible for Apple DDR4 2666MHz / 2667MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K, Late 2018 Mac Mini (8,1) PC4-21333 /PC4-21300 MAC RAM at Amazon.com
8gb DDR4 2667 MHz for Sale in Vancouver, WA - OfferUp