@Solla-topee The last update on this specific adapter was back in 2019. Big Sur is on market since June 2020 and it's very sad that your customers need to seek for alternatives because your products...

Hello, I purchased the Archer T9UH V2 due to lower Wi-Fi on my iMac and this adapter had very good reviews and stated it was compatible with Mac. I attempted to install it multiple times yet failed...