Bear with me here, I'm not much of a hardware guy. I ordered one of these, thinking it was powered via the USB dongle.
Alas, it is not so - how in the world am I supposed to power this fricken thing?
Easy option. Buy a 12V > 4A power adapter. The ones that look like laptop charger...
You can get it from ztex direct :
http://shop.ztex.de/product_info.php?cPath=21_24&products_id=71 Or buy cheap made-in-china ones.