Who is Avycon?
An American company? A Korean company? A couple of guys relabelling Chinese products? The latter is the best explanation.
While Avycon has nearly no name recognition, they are getting a push from ADI who declared Avycon one of '7 top brands', along with now US government banned Hikvison and Dahua (ex-FLIR inventory):
In this note, we examine who Avycon is, who they are OEMing from, what ADI is doing and what the future may hold for the company.