You can find some information if you search for USB Ethernet or just ethernet over on InternetTabletTalk.com.
This question comes up now and then over there.
Sometimes people will want to connect to a wired-only network, e.g. at work or in a hotel.
Most of the time the easiest and simplest solution is to get a cheap travel/pocket wi-fi router (e.g. asus, linksys or others), these work very well and are easy to carry and use: Plug in, and you can go online through wi-fi.
But sometimes this is not an option, e.g. at a site where you're not allowed to attach a router to the network. In those places a USB-Ethernet adapter comes in handy, and what's described to work on those ItT threads should work equally fine with the Pandora.