CMI8738 ?4 Channel Sound Card TS-8738/4CH Features: 1.CMI8738-4CH 6-channel PCI Sound Card 2. HRTF-based CRL 3D extension positional audio, API compatible with Microsoft, DirectSound 3D and Aureal A3D API 3. Supports rear side speakers, CX3D positional audio in 4-ch speakers mode 4. Legacy audio SB pro compatible 5. Audio port: Mic-In, Line-In, Line-Out 1, Line-Out 2, Game/ MIDI, CD-In 6. Drivers support: Environment Audio Extension, karaoke key, echo, surround, Win98, Win2000/XP, LINUX 7. 16-bit DAC, 32-bit PCI bus master, PCI2.2 compliant 8. 16-bit full duplex CODEC 9. PC98/PC99 specification compliant 10. Single chip design Packing: Sound Card CD Driver