A:AnswerAny PCI gen 4 NVME SSD works. Many people love the Samsung 980 or 990 Pro.
see this filtered list of 1 TB gen 4 SSDs
https://pcpartpicker.com/products/internal-hard-drive/#t=0&f=122080&c1=di_m2.pcie_40_x4&A=900000000000,1500000000000
A:AnswerI know that it CAN be upgraded, but I'm not sure about ASUS compatible cards. Reddit says to try the Intel AX200 for 6E, but might be worth some additional research.
A:AnswerDon't know on the WiFi.
There are two M.2 NVME slots, both -- as far as I know -- are PCIe 4.0 and go up to 4Tb.
According to the specs, you can get up to 64gb of DDR5 SODIMM RAM installed between the two ports, with a max of 32gb/ea. Not sure if that is a hard limit.
A:AnswerAbsolutely. With the battery and power efficiency I've run it for several hours unplugged. Works just fine.
Huge assemblies may stress the system and will require it to be plugged in.
