I bought this beast for my desktop computer:
This USB wifi adapter ($80 at Micro Center) replaces the wifi card in the desktop, which was the culprit of my desktop being stuck in an endless download loop of Windows 10 (turns out this was an issue with many Gateway desktop computers).
This thing is like having an AC1750 router hooked up!
It is amazing as long as there is good wifi reception.
When I was at my computer guru's house after he figured out my issue and connected to my Verizon Hotspot, it was faster than my desktop was at home hooked up to high speed Comcast internet!
Here at the RV park it is nowhere near as fast, mainly due to the cell tower not being very close, but still way faster than the RV park's wifi.
I am using it right now and is excellent for email, chats and Facebook stuff!