The AC poweradjust USB cannot be purchased anywhere it seems. Everyone is out of stock and shoggy said he did not know when or if they would be back in stock.

I have two of them and one does not vary the voltage to the pump when demanded. I run two DDCs in series and need two of these. However, for two weeks I have been looking for another poweradjust with no luck.

I would buy anywhere in the world that ships to USA. They are nice pieces of equipment.