Cable and Internet connection help

So if i buy that USB network adaptor I will be able to move my desktop and receive wireless connection from the Verizon router (like I do with my ipad)?

Exactly.
With the signal going through 50-75 direct line feet of walls or floor without metal panels it should work well.
I'm one of those people that don't believe in high dollar big brand equipment for everything.
Stuff that works is just fine. :-)