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 CM8828+CM9882A 4. Abundant Input/Output 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 2.1/5.1 Stereo Surround Sound System Equipment 3. Interface Interface: Line: Line Input, Mic: Microphone Input, FRONT: Front Output, 4. Features: Rich Input/Output Interface, Asio Driver And Intelligent Software Interface Onboard High-Definition Audio (HDA) Output (F-Audio) 5. Embedded Mode: Embedded 8051-Based MCU Can code Hd Audio Commands 6. Application Fields: Home Theater, Large-Scale 3d Games, Audio Playback And Other Entertainment Digital Audio 7. Sampling Rate: 44.1~192 Khz/24 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: black+silver 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.