Features: 1. Suitable For Home Theater, Large-Scale 3D Games, Audio Playback And Other Entertainment 2. PCIE X1 7.1CH Professional Temperature Compensation Sound Card CM8828 3. The Main Controller Is CMedia CM8828CM9882A 4. Abundant InputOutput Interfaces 5. Asio Driver And Intelligent Software Interface Onboard High-Definition Audio (HDA) Output (F-Audio) Description: 1. Bus Type: PCI Express Rev 1.1 2. Audio Channel: 7.1 CH Audio System, Compatible With 2.15.1 Stereo Surround Sound System Equipment 3. Interface Interface: Line: Line Input, Mic: Microphone Input, FRONT: Front Output, 4. Features: Rich InputOutput Interface, Asio Driver And Intelligent Software Interface Onboard High-Definition Audio (HDA) Output (F-Audio) 5. Embedded Mode: Embedded 8051-Based MCU Can Transcode Hd Audio Commands 6. Application Fields: Home Theater, Large-Scale 3d Games, Audio Playback And Other Entertainment Digital Audio 7. Sampling Rate: 44.1192 Khz24 Bits 8. Signal-To-Noise Ratio: 100db 9. Harmonic Distortion: -85db Playback-90db Recording 10. Control Interface: Xear Intelligent Software Exchange Control Interface 11. Working Mode: Extended Full Duplex (Simultaneous Playback And Recording Function) 12. Audio Mode: Xeartm Living 1.1, Xeartm , Voclear, Xearm , Xearrm Surround 13. Audio Support: Directsound 3D 14. Input And Output Interface: Line Output (Rear), Line Output (Front), Telephone Answering Equipment Input, Analog, Microphone Input, Line Input note: Different batches may have differences in product appearance, color, and printed characters, which not affect the use size: 12.1 x 16.5cm Material: PCB colour: blacksilver Package Contents: 1 x Sound Card 1 x Silver Front Frame Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is - 1-3cm.