Best Buy: Creative PCI Express Sound Blaster X-Fi Titanium Fatal1ty Professional Series Sound Card SB0886FCS
Sound Blaster X-Fi - Wikipedia
Picked up 2 PCIe Sound Blasters for $10 each off Craigslist: an Audigy FX (with low-profile bracket), and an X-Fi Titanium Fatal1ty Pro. : r/ThriftStoreHauls