OWC 32GB (2 x 16GB) PC21300 DDR4 2666MHz SO-DIMMs Memory, Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs, (OWC2666DDR4S32P) at Amazon.com
Corsair Vengeance SODIMM 32GB (2x16GB) DDR4 2400MHz CL16 Memory for Laptop/Notebooks (Intel 6th Generation Intel Core i5 and i7 Processor Support) Black : Amazon.co.uk: Computers & Accessories