The desktop computer in my coach (see signature for particulars) does not have a wifi board installed in it. I have obtained a Netgear AC1200 High Gain WiFi USB Adapter that I plan on installing in on...
I have a Verizon mifi, Mac Book Pro and wireless mouse and keyboard. I have used this setup for last 6 -7 years and have had no problem. Wife is a CFO for Company and does her work on the road using this setup - and we have been cross country several times.
Her only complaint is laptop screen is to small to use while traveling down the road - but then she has twin 28 inch monitors on her desk at work.