7.1CH USB 2.0 External Optical Sound Card Audio Adapter Description: This is 7.1 Channel USB 2.0 External Optical Sound Card Audio Adapter. It is a highly flexible USB audio control, which supports 32KHz, 44KHz (driver support needed) and 48KHz sampling rate in digital recording as well as 48KHz sampling rate in analog recording and digital/analog audio playback. Features: *100% Brand New. Dimensions ( about ): 20*14.5*4cm *Plug & play for Windows without external memory. *7.1 Channel USB 2.0 External Optical Sound Card Audio Adapter. *Compliant with USB specification V1.1, V2.0. *Compliant with USB Audio Device Class V1.0, V2.0. *Fixed 48KHz sampling rate for 7.1 channel playback. *Support SCMS (Serial Copy Management System) copy protection. *Support USB full speed 12Mbit 480Mbit serial data transmission. *Support 32KHz, 44KHz (need driver support) and 48KHz sampling rate in digital recording. *Support 48KHz sampling in analog recording and digital/analog audio playback. *Support AES / EBU, IEC60958, S / PDIF consumer formats for stereo PCM audio. *Support input and output channels. *Support conventional audio code interface for 7.1 channel playback. *Compatible with Windows 98SE/ME/2000/XP/Vista, Mac OS 9.1 (Mac version only has 2 channels playback). *Interface Type : USB IN MIC IN, SPDIF IN, LINE IN SPDIF OUT, FRONT OUT, CEN/BASS OUT *Compatibility : Windows 98SE/ME/2000/XP/Vista Mac OS 9.1 (only has 2 channels playback). Package Contents: 1 x USB 2.0 7.1 Ch Optical Audio Sound Card. 1 x USB Cable. 1 x Driver CD. *Quantity:1 *This item is 100% Brand New. Never used. It comes with 3 Months Warranty by Seller.