Seems like a decent deal and RGB will give you extra speed [/Sarcasm]
Silicon Power 16GB (8GBx2) XPOWER RGB Turbine Gaming DDR4 3200MHz (PC4 25600) 288-pin CL16 DDR4 RAM for $106 Delivered from Amazon Australia (Sold by Silicon Power AU)
This is the cheapest RGB 16GB module I could find and and apparently these are Samsung B-die
Cheapest price according to CamelCamelCamel
However you could save $2 and buy it from Amazon US via Amazon Au for $104 - of course shipping time will be longer.
If you don't need RGB, don't mind Blue colour and after faster 3600MHz RAM then this is also decent for $88.47 but it is CL18 and was slightly cheaper yesterday.