Install pyserial offline

Hi,

I have PC that as PyCharm Community Edition install on it.

this PC doesn't have internet connection.

I would like to add the pyserial 3.4 to it.

I download it from the link https://pypi.org/project/pyserial/

I install it via the command line

At the pycharm, I get an error after the command: import serial

"ModuleNotFoundError: No module named 'serial' "

How do I add the module  to my offline PC?

Thanks

Elad