ASUS XONAR DSX PCIe 7.1 GX2.5 Studio Grade 192K/24BIT Audiophile Swappable OPamp | eBay
ASUS - ASUS Xonar DGX 5.1 Audio Card (top view) ASUS Xonar DGX 5.1 and Xonar DSX 7.1 PCI Express audio cards improve gaming and HTPC audio beyond the levels of onboard
Music to your ears: Reviewing Asus' budget Xonar DGX and DSX sound cards | Ars Technica