Amazon.com: OWC 32GB (2 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S32P) : Everything Else
Used 2017 Apple iMac 21.5" Core i5 3.40GHz 8GB RAM 1TB + 32GB Fusion MNE02LL/A - Walmart.com