ESTILLO C-Media 8738, PCI, 4

Bus interface:
- PCI interface, PCI 2.2 compatible bus mastering modes
- PCI interface power management (PPMI)

- CMI 8738-4CH chipset chipset
- Full duplex for simultaneous recordings
and playback
-4 Channel playback

Analog and digital functions:
- Integrated 16-bit stereo CODEC
- 16-bit stereo ADC and DAC
- 16-bit simultaneous record and playback
at full bandwidth
- Supports playback up to 96KHz/24-bit
- Supports up to record 48KHz/16-bit
- 4 stereo inputs for LIN-IN, CD-IN, Aux-In, Mono microphone input
- SPDIF out (separately)
- 4-Channel output support

3D features:
- 3D surround sound
- Sensaura HRTF 3D positional audio technology and plays 3D demo program
- Aureal A3D
- Microsoft DirectSound 3D
- DirectMusic Hardware Acceleration