I have a bunch of them that I salvaged out of some PCs that were used aboard ships to operate a Iridium based Glove i4 communications system made by Global Wireless. They all work fine. They came with a bunch of 12 VDC 5 Amp (IRRC) wall warts. Hmm, I just looked at one of the computers and the back panel says "12 VDC 1.8A". The mother board is a VIA EPIA-EK. I don't know about the quality of the ones on E-bay but these look just like them and everyone that I tried out works fine.
PS I just pulled out one of the 12 VDC supplies to look and see if it was marked the same ("Z2-ATX-160") as the 2nd one on E-bay. It's not. This says "Mini-Box.com" on it so you might want to check there. (Markings aren't the same but they may still be made by the same company.)