I think we are not on the same page. The PX-2 power adapter (aka power supply in some regions) is available. However this is used to power the Variax XPS “box/kit”.
Says as much in the link to Line6Tony posted above. Musicstore also lists the PX-2 as being used to power the XPS box.
The large music stores are however saying the XPS kit is discontinued and not the power adapter. Re the line 6 link, not sure if different products show up in different regions, but for EU only 1 product shows up for the Variax and that is the USB interface kit.
Hope it’s clear what I mean?