Sienoc 6CH USB Optical Sound Box Audio 5.1ch Card Adapter for Laptop PC<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Specifications: • Fixed 48KHz sampling rate for 5.1 channel playback • Support AES/EBU，IEC60958，S/PDIF consumer formats for stereo PCM audio • Supports digital recording function with 32KHz，44KHz and 48KHz sampling rates • Supports analog recording function • Supports SCMS (Serial Copy Management System)copy protection • Compatible with Win98SE，ME，2000，XP，Mac OS 9.1( Mac version has 2 channel playback only)</li><li>• Fully duplex playback/recording audio steam without sound Cardin PC • Compliant with USB specification v1.1 • Compliant with USB audio device class v1.0 • Supports USB full speed 12Mebit serial data transmission • 3 input terminals • 3 output terminals</li><li>• Alter mate setting 0 is a zero-bandwidth setting used to release the claimed • Bandwidth on the bus when this device is inactive • Isochronous transfer uses adaptive and asynchronous synchronization • Supports multi channels audio code interface for 5.1 channel playback • Supports conventional audio 2 channels source playback (only L，R， channel active)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41JoiYDwfxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41a1bKN19dL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41uMl-sPmXL.jpg" noproxy>