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
G.Skill Flare X DDR4 2400 MHz 32GB (16GB x 2) (F4-2400C15D-32GFX) | 飛馬電腦PEGASUS
Apple Memory Module 32GB DDR4 2400MHz SO-DIMM (2x16GB) - Apple (HK)