Welcome to the store! 5.1 Channels: This USB sound card adds up to 5.1 channel audio via a single USB port to your computer, supporting 5.1 and 2 channel output. Multiple Interfaces: This external sound card features Mic IN, Spdif IN, Spdif Out, Line IN, Front Out, Rear Out, Cen/Bass Out, USB IN. PC Audio Upgrade: This 5.1 sound card supports analog and digital audio output for stereo to 5.1 channel audio applications, upgrading the existing integrated sound on a desktop or laptop. 48 KHz Sampling Rate: This USB audio adapter supports a 48 KHz sampling rate for analog playback and recording. Easy Installation: This 5.1 channel audio adapter can be easily installed, suitable for Win XP, Vista, and Win 7. Item Type: USB Sound Card Material: Aluminum Alloy Compatibility: Compatible with SES/EBU, IEC60958, S/PDIF format for stereo PCM audio Sampling Rate: 48 KHz fixed sampling rate Analog Recording Function: Supported SCMS Copy Protection: Supported Operating System: Suitable for Win XP, Vista, and Win 7 Function: Supports full duplex playback/audio stream recording on PC Data Rate: Compatible with USB Full Speed 12Mbit serial data transmission Input Terminals: 3 Output Terminals: 3 5.1 Channel Multi-channel Audio Codec Interface Playback: Supported Traditional 2-Channel Audio Source Playback: Supported Package list 1 x USB Sound Card 1 x CD 1 x USB Cable Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!