I've seen people install the 32gb version but haven't seen the 16gb installed. Saw it on Amazon for $69 so...24gb total ddr4 3200, sure why not. : r/ZephyrusG14
16Gb Vs 24Gb RAM DDR4 3200MHz - Test in 2 Games - YouTube
Kingston Technology ValueRAM 24 GB Kit of 3(3x8 GB Modules) 1333MHz DDR3 PC3-10666 Non-ECC CL9 DIMM Server Memory (KVR13N9K3/24) at Amazon.com
24GB Kit [3x8GB] DDR4-2133 (PC4-17000) Memory RAM Upgrade for The Compaq HP Proliant DL360 G7 Server Memory at Amazon.com
PATRIOT MEMORY PVSR432G320C8K Patriot Viper Steel RGB Series DDR4 32GB (2 x 16GB) 3200MHz Kit
8GB 16GB 24GB OR 32GB RAM DDR3 PC3-12800 CL11 240-PIN DIMM KVR16N11/8 for AMD (8GB DDR3) at Amazon.com