sooo, there is a version 5 user guide on the AC900 in German region that does actually belongs to AC750: https://www.tp-link.com/de/download/Archer-C2_V5.html this is wrong, please fix it!

I found the C2 AC900 in the european market. Why this product can not be found for portuguese market, is this correct or simply missing?

ok, so I found the european products and there are both Archer C2 and C20 for the AC750. Still no joy finding C2 AC900...

This product line is very confusing. I am struggling to find the user manual. Some vendors have the Archer C2 AC750, others Archer C20 AC750 or Archer C2 AC900, sometimes with 2 antennas sometimes...