Hi
I am considering using a Raspberry PI 4 as my next router.
What antennas should I buy (I need both 2.5 and 5 GHz networks) ???
It should be noted that I live i a very very populated area. Does it make sense to buy a mega Alfa Antenna ( Alfa AWUS036ACH) to burst full power or does it not matter ?
I agree with the statements already made about getting an AP or wifi router and using a that for wifi. A purpose-built wifi AP will have much better performance than any of the USB based devices that you are considering.