Built-in sound card is broken.My sound stopped working.I don’t want to repair the motherboard.
So i want to buy external sound card for my laptop…
My budget is $15.
Thank 
It depends on what you need.
Is the sound card primarily for use with Audacity?
So you do recording with Audacity? If so, what / how do you record?
What do you use for playback? Headphones? Speakers? What sort, and how are they connected?