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
New Genuine Memory for 16GB 16GB DDR4 2666 SoDIMM 01AG813 at Amazon.com
RMSA3300ME78HBF-2666 16gb Pc4 2666MHz DDR4 So-Dimm Non-ECC 260 pin 1.2V Ram Memory for Laptop and All in One Desktop Computer (16gb Pc4 2666MHz DDR4 So-Dimm) at Amazon.com
Amazon.com: AddOn 16GB DDR4 SDRAM Memory Module - for Desktop PC - 16 GB (1 x 16 GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - CL15-1.20 V - Non-ECC - Unbuffered - 260-pin - SoDIMM : Electronics