Good Way to test your physical keyboard output
Create a project and add any VST instrument
Press Alt-K or go to the Devices menu and select the Virtual Keyboard. If necessary press the Tab key to view the keyboard gui instead of the piano roll.
Attempt to play 3 notes at the same time using the “Q”, “W” and “E” OR the “W”, “E” and “R” keys - This should work fine. All 3 notes should play with no issues.
Now attempt to play the “E”,“R” and “T” OR ANY OTHER VARIATION OF KEYS simultaneously and if only 1 or 2 notes out of the three are registered as being pressed by the virtual keyboard, then you have a standard physical keyboard.