Axiom 32GB DDR4-2400 ECC RDIMM for CiscoUCS-MR-1X322RV-A32 GB (1 x 32GB)DDR4 -2400/PC4-19200 DDR4 SDRAM2400 MHzCL171.20 V... UCS-MR-1X322RV-A-AX - Corporate Armor
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