Then this
https://wikidevi.com/wiki/ASUS_RT-AC1200G
or this
https://wikidevi.com/wiki/ASUS_RT-AC1200GP
would be it! Especially knowing that ASUS told me that the 1200G runs on the UNII1, UNII2a, and UNII2c. So, the price is reasonable. It is Broadcom, not Realtek, Ralink, Mediatek or...