1.The built-in audio chip supports 24 bit, 192kHz sampling rate and achieves powerful and clear . 2.Total harmonic distortion ( short) playback time (90 dB) / recording (-85 dB), signal-to-noise ratio 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, but also provides some special features for your exploration. 5.High quality 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 program 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 products are not included. Note: Light 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.