1.The built-in audio chip supports 24 bit, 192kHz sampling rate and achieves and clear . 2. harmonic distortion ( short) playback time (90 dB) / recording (-85 dB), signal-to-noise 100dB. 3.7.1 of the is compatible with stereo, 2.1 and 5.1 speaker system. 4.Intelligent audio software control switching interface, in addition to conventional sound control, also provides some features for your exploration. 5. audio data low latency ASIO driver(AudioSystemInputOutput) Extended full duplex mixing (for example, while playing audio sources, recording and editing the file, released on a music or the Internet, can be played directly from each required source Support windows Windows XP / Vista / Windows 7 / Windows 8 / win10 32/64 Product name: PCIe 7.1CH audio expansion card Colour:black Material:ABS + Metal Size: *80mm Package Contents: 1*Sound Card 1*CD Driver Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.