Before we start preparing an instance, we need to care about a hardware Wi-Fi interface as probably the most important part of the pentesting platform. There are three main criteria for hardware Wi-Fi interfaces important for penetration testing and thus influence our choice:
Chipset: The chipset of a Wi-Fi interface should be able to support packet injection mode, which allows us to interact with an interface on a low level and customize transmitted packets.
Power and sensitivity: This parameter determines the distance between you and your targets—the higher the power and sensitivity, the farther you can stay. But you should take into consideration that higher power consumes more energy and shortens a laptop's battery life.
Proportions: This parameter does not influence the quality of penetration testing, but it influences the ease of your work. The bigger an interface and the more wires you have, the less comfortable it is to use on-site.