Astec are a Taiwanese company that manufacture thin clients and cloud computing solutions.
Their website is unfortunately current and forward looking - there is next to nothing there about past products and the support page is '..fill in a form and ask' rather than having a list of past models, directly downloadable updates, and such like.
In this section I currently have an entry for the A3500s that is part of the A3C family that was launched sometime before mid-2008. My sample had been rebadged by thinspace whose website has no reference to older products.
Any comments? email me. Last update May 2014