Features:1. 7.1 channel: This product uses multi-channel technology supports 2-channel analog 7.1 channel realizes dynamic sound and provides dynamic rotating sound field.2. USB 2.0 interface: This product has a USB 2.0 interface plug and play can replace the traditional sound card.3. Free switching function: This product supports the free switching function of the earphone and speaker mode which can simulate the free adjustment of the speaker position and is more convenient.4. Mixer function: This product supports the mixer function can adjust the output level freely and bring you different hearing enjoyment.5. High performance: This product can convert analog signals (line signals of microphone and CD MP3 TV tape recorder etc.) into digital signals and save functions. It supports 16 rhythm preset modes and 23 sound field preset modes.Descriptions:1. This sound card has the sound quality comparable to that of CD and is installed outside the chassis thus eliminating the electromagnetic interference inside the chassis and making the sound quality more pure. And it supports 2-channel analog 7.1 channels with high power can promote a variety of high-impedance headphones ordinary headphones and audio signal-to-noise ratio can reach 90 decibels.2. In the WIN2000 WINXP WIN3003 system this product does not need to install the driver and the operation is simplified. Just plug in your headphones or speakers and the beautiful music is instantly visible and it's small and easy to carry.Specifications:Color:BlackSound card channel: 7.1 channelInterface type: USB 2.0Audio interface: input 3.5mm output 3.5mmIndicator light: microphone switch indicator sound card status indicatorSystem support: Windows XP/Windows 7Package Included:1 x 7.1 External USB Sound CardNotes:1.Due to the difference between different monitors the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2.Please allow slight dimension difference due to different manual measurement.Welcome to our store, let the store feel very honored, this shop sells all kinds of high-quality goods, you can rest assured to buy, what dissatisfaction and do not understand can communicate with the platform in time, the platform will do its best to serve you, I will give you a quality shopping experience and wish you a happy shopping! thank!