it already has onboard sound so they can plug their headphones in either their case front panel jacks via the headers off the motherboard or the output on the rear i/o of the mother board itself
Why yes. Yes it does. Google comes through once again. To the second question, no. If it doesn't have a sound card what would you be plugging the headphones into?
it already has onboard sound so they can plug their headphones in either their case front panel jacks via the headers off the motherboard or the output on the rear i/o of the mother board itself