CMI8738 6-Channel PCI 3D Sound Card Provides audio fidelity that rivals movie theaters with 5.1-ch digital sound. Customize Internet audio with the power and surround sound of EAX audio technologies. Enjoy compelling 3D audio and 5.1 sound on multiple speakers series. 6 channel DAC for AC3 5.1 channel purpose 32bit PCI Bus Master, PCI 2.1 / PCI 2.2 compliant HRTF-base 3D positional audio, supporting DirectSoundTM3D, EAX and A3D interface Karaoke system enabled Supports multi-speaker output to 2 / 2.1 / 4 / 4.1 / 5.1 speakers Support EAXTM, Karaoke key, Echo sound effects High Performance Dual Game Port MPU401 compatible MIDI interface & GM Comply with Microsoft PC99 specification DLS-base Wavetable music synthesizer Fully Sound Blaster, Sound Blaster Pro compatible and Direct Sound compatible Connector Front-Out, Rear-Out, Center & LFE, Line-In, MIC-In and Game/MIDI port