Greetings @Maxbeta,
Welcome to HP Forums and Thanks for the post.
I understand that you are looking to know if you can connect and use external speakers with your computer using a Combo port.
Not to worry, I will be glad to assist you.
You can surely use external speakers with your computer through the combo port.
If for any reason you do not get any audio from the speaker, please do a right-click on the speaker icon on the taskbar.
Select playback devices and select the speaker as the default device.
Let me know if this helped.
Chimney_83
I am an HP Employee