The original RAM is from Apacer. It is DDR4-2800 / PCM-22400 DDR4 SDRAM S0-DIM. My G752VSK came with 16G of RAM. Both available memory slots accessed by removing the bottom cover were empty. I assumed ASUS had filled the other two slots (on other side of motherboard) with two 8G sticks. I located two 16G sticks of RAM from Newegg matching what was already in the Laptop (Apacer NOX DDR4). I ended up installing the new RAM in the two slots on the other side of motherboard and placing the one RAM module (yes, ASUS had just a single 16G stick of RAM) in one of the accessible slots. Once that was done I thought I would add another 16G stick in the future. Alas, Newegg, nor anybody else has sold any Apacer DDR-4-2800 memory since. I can purchase original RAM from ASUS for about twice the price but so far have resisted.
The two original 256GB Samsung SM961 M.2 NVMe SSDs have been replaced with two 512GB Samsung 960 Pro M.2 NVMe SSDs. These two SSDs are in RAID.
The original 1TB HGST 7200RPM hard drive was replaced with a 1TB Samsung 850 Pro SSD.
Both original storage devices were pulled with the original programing intact and are stored. Yes, I kept a copy of my eSupport Folder before reinstall my Windows OS.
I have upgraded most of the ASUS drivers and programs using the IvanRF website: https://ivanrf.com/en/latest-asus-drivers-for-windows-10/ A list of those upgraded drivers and programs is attached.