Apologies if this is in the wrong Forum section, but wanted to know if there's such thing as a USB WiFi antenna/dongle for Android devices? I've seen some for Windows products, but nothing so for for Android OS. Just trying to see if I can increase/help the speeds on my Android box.
There is no definitive answer to this question. It depends on what hardware support was compiled into the Android kernel by the vendor. Not knowing the specifics of the Android device, it's not possible for anyone here to know the answer.
The best way to improve performance is to use a wired connection. If that is not possible and no dongle will not work, there are other solutions such as using a pair of powerline adapters or a router configured in client mode.