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
SO-DIMM - Latest Articles and Reviews on AnandTech
ADATA Premier – 16GB DDR4 SO-DIMM, PC4-21300 (2666Mhz), Non-ECC, CL19, 1.2V, 260 Pines, Sin Búfer - Yoytec
Patriot 8GB Signature Line DDR4 3200 MHz SR SO-DIMM