I am an international seller,providing customers with high-quality and inexpensive products. Our shop sells the most popular 3C consumer electronics products,such as mobile phone accessories,computer accessories,game peripherals,smart wearables,and follow the most popular fashion trends. If you like our products,please follow us,become our follower and fan.We will provide you with the most popular products to satisfy your fashion shopping experience.Specifications:Made of ABS material, durable to use.Compact and small size, easy to carry.Plug and play, no need for driver, convenient to use.It extends stereo speaker or earphone to 7.1 channel environment, giving high quality sound enjoyment.Item Name: Audio Sound CardMaterial: ABSInterface: USBI/O: Analog, Linear Input, Microphone Input, Linear Output (Front), Linear Output (Rear)Sound Channel: 7.1Sound Support: for DirectSound 3D, for EAX 3.0/EAX 4.0, for Dolby Digital EX Decoding, for Dolby Digital AC-3 Decoding, for Multi Speaker Surround3DFeatures: External, Portable, Plug and PlaySize: 4.5cm x 2.5cm x 1cm/1.77" x 0.98" x 0.39" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Audio Sound Card