Amazon.com: Asus Xonar D2 Sound Card (Black) : Electronics
Asus Xonar U7 MKII External Sound Box 24 bit DAC Data Width 7.1 Sound Channels External C Media 6632AX USB 2.0 114 dB 3 Byte 192 kHz Maximum Playback Sampling Rate 3
Asus Xonar SE PCIe 5.1 Channel 192kHz/24-bit Hi-Res 116dB SNR Gaming Sound Card | eBay