Question Help! Need help getting broken cord out of PC!

I would imagine that pulling the remains out with pliers will do the job.
If you need a better grip, use a vice grip plier.
DP has a small latch that you need to press while pulling out the cable.
Look at a good cable to see it.
My guess is that you pulled on the wires without depressing the latch to release the cable.
Expect the remains to be unusable.
 
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