Originally Posted by Methanoid
Thats funny.. the seller told me 5.5x2.5 and that 2.1 wouldnt work... not to worry, I have ordered a 5.5x2.5 and we shall see
Might be different for a different revision.
I've heard the newer models work up to 12V (labeled 5-12 or something???).
Maybe they changed it a bit??
Let us know! :-)