Hitokiri
New Head-Fier
Yeah sorry, I should have been more specific. Like 10-15 years ago, if someone wanted to get better sound than onboard audio he would usually purchase a PCI-E soundcard like Asus Xonar Essence STX or Creative SoundBlaster. But, nowadays it's probably better to buy an entry level external DAC and Headphone amplifier.Not really sure what you mean by that, haven't heard that PCI Express interface was replaced.
Adding USB PCI-E add on card was a known solution to deal with some MBs crappy onboard USB.
I, personally wouldn't put anything audio related into a noisy PC - even a PCI-E USB card. But, I guess it could be a cheap way to make things a bit better.