I have an Archer T4U V2 and it worked. And when I bought mor sticks for our sudents, I get an adapter with V4 and it didn't work.

@helenwagner1 Thank you for your answer, but these Adapters do not support the AC-Standard. I solved it by other noname Adapters. I'm teacher at our school. It's a regular school in Germany in...

I'm searching for WLAN-Adapter with Monitor-Mode and AC-Standard. Wich Adapters does support that or how can I check out this. I have a Archer T4U in Version2, which supports Monitor Mode, but when I...