USB Sound Card Supports 5.1 7.1 Channels Rich Interfaces Plug and Play External USB Sound Adapter for Laptop PC Item Type: USB Sound Card Material: Aluminum Alloy Support: AES/EBU, IEC60958, S/PDIF Sound Channel: Supports 5.1 Channel and 7.1 Channel. Can be connected to 5.1 Speakers Sampling Rate: Up to 48KHz Sampling Rate, Support 32KHz/44KHz/48KHz Digital Recording Function Interface: SPDIF OUT, SPDIF IN, CEN/BASSOUT, REAR OUT, FRONT OUT, LINE IN, MIC IN Optical Output: The Sound Card Optical Output Only Supports 488KHz Sampling Rate, so the DTS CD is 44KH and needs to be converted to listen to it. Compatible Systems: Support for Win98/ME/2000, for WIN 7, for WIN 8, for WIN 10, for OS X 9.1 (for OS X only 2 channels can be used) Full Duplex Sound: Play and Record Full Duplex Sound Streams Without a Built in PC Sound Card USB: USB 2.0 Backwards Compatible with USB 1.1 Sound Device Specification: Compatible with Sound Device Specification V1.0 Transfer Speed: Supports USB Full Speed transfer specification up to 12Mbps