I just got a DIGITUS 10/100 Mbps Fast Ethernet USB adapter DN-3015 from amazon.de:

http://www.amazon.de/Digitus-100-Eth...5670180&sr=8-1

It is an USB 1.1 device and uses 120mA max.

I haven't tested it extensively but using an micro A to USB female adapter it works out-of-the-box following the HOWTO:

http://www.internettablettalk.com/wi...de_and_OS_2008