Hello, according to chat gpt I will not be able to use the product without the addition of a PoE injector and power cord which would not be sold with it. Please tell me if the product I bought (Zyxel NWA50AX Pro) is usable after installation as soon as I receive it, or if I need to buy additional equipment to be able to install it. Thank you for your feedback on whether I should cancel my order, and how I can get my money back.