Q: Should I download Kali Linux directly on my PC or VirtualBox?
A: Provided you want to install Kali Linux on Oracle Virtualbox or any other Virtualization software, you need to download Kali Linux directly on your PC. The download can be either ISO file or images specifically made for Virtualbox. My suggestion for you is to go with Virtualbox images which can be downloaded from here You can follow our detailed guide on how to install Kali in virtualbox from here.
Q: Which is a budget WiFi adapter that supports Kali Linux, monitor mode etc?
A: Leaving affordability out, the wireless adapters that support monitor mode and packet injection are Alfa AWUS036NH, Alfa AWUS036NHa, Alfa AWUS036NEH, Panda PAU09 N600, Alfa AWUS036ACH etc. These are a bit expsensive but do…