Attaching speakers

This is the new 7010 small form factor audio spec

https://www.dell.com/support/manuals/en-us/optiplex-7010-small-ff/opti_7010_sff_om/audio?guid=guid-6878b68f-ccfb-4c6a-9f62-3ed941403f53&lang=en-us

when you plug in a usb2.0 pc speaker such as J. Burrows, does Windows prompt you a question what you plugged in?

My older optiplex 7070 sff has a rear audio port (

1. Line-out audio port)

in addition to front headset jack.  When I plug in a usb 2.0 speaker (power connector in usb, audio jack in rear audio port), windows or rather maxx audio asked me what did I just plug in.  The default was external speaker.  And it works.  Realtek is just the audio controller not the play back device.  If I unplug the usb 2.0 speaker, pc uses its own internal teeny speaker.  After I plug in speaker, it takes over.

Now I know the new 7010 small form factor does not have the rear audio port.

Now normally

1. Line-out audio port

means audio input,  but surprisingly it works well for external speakers too.  I got great sound play back.

I also tested plugging usb 2.0 speakers jack in the front headset jack it works too, but the sound is much softer than rear audio port.  So it seems the front jack can only send small current out suitable for headphone but not real speaker. That is the design limitation.  If you want big sound, you would need to add a low profile PCIe sound card.