PrtScr is the key that is used on Windows keyboard to make screenshots - this key however is specific to Windows keyboards and does not exist on Mac keyboards. So if you attach one of those to a PC you
How to take screenshots with a Mac keyboard on Windows
Mac keyboards do not have the PrtScr key that you need to make screenshots on Windows machines. An easy way to circumvent that problem without getting a new keyboard is to use the built-in Windows on-screen keyboard. Regardless of what hardware