Feature: 1. 5.1 Sound: Upgrade your audio listening experience with a high performance of compelling 5.1 channel surround sound. 2. Operating System: It can be used for Windows XP / Vista / 7/ 8 and 32 / 64-bit PC with PCI-express slot. 3. Noise Balance: Support front L/R, surround L/R, Center/Subwoofer and noise balance elimination function when PC power off or on. 4. Chip: Using the VIA VT1723 Envy24D multichannel sound effect chip to provide you a better experience. 5. Compliance: Compliance with PCI-express x1 specification revision 1.1 and conforms to 66 Channel AC\u002797 specification revision 2.3. Specification: Description: Full duplex 5.1 channel PCI-Express sound card, using the VIA VT1723 Envy24D multichannel sound effect chip to provide you a better experience. Features: 5.1 Sound: Upgrade your audio listening experience with a high performance of compelling 5.1 channel surround sound. Operating System: It can be used for Windows XP/Vista/Win7/Win8/Win10 and 32 / 64-bit PC with PCI-express slot. Noise Balance: Support front L/R, surround L/R, Center/Subwoofer and noise balance elimination function when PC power off or on. Chip: Using the VIA VT1723 Envy24D multichannel sound effect chip to provide you a better experience. Compliance: Compliance with PCI-express x1 specification revision 1.1 and conforms to 66 Channel AC'97 specification revision 2.3. Specifications: Operating Systems: For Windows XP/ Vista/Win7/Win8/Win10 Color: Black Main Item Size: Approx. 9.3cm * 5.1cm * 0.1cm / 3.7in * 2in * 0.04in Product Weight: Approx. 46.3g / 1.63oz Package Size: Approx. 14.6cm * 12.7cm * 2.7cm / 5.7in * 5in * 1in Packing Weight: Approx. 79g / 2.79oz Package Includes: 1 * Sound Card 1 * Sound Driver Note:Please disable the sound card on the motherboard before downloading the driver. Package List: 1 * Sound Card 1 * Sound Driver