Supports AES/EBU, IEC60958, and S/PDIF True 5.1 and 7.1 channel support; compatible with 5.1 speaker systems Supports sampling rates up to 48kHz, including 32kHz, 44.1kHz, and 48kHz for digital recording Optical o output supports up to 48kHz; DTS-CD at 44.1kHz requires sample rate conversion for playback Compatible with Windows 98/ME/2000/XP/Vista/Win7/Win8 and Mac OS 9.1 (stereo output only on Mac) Full duplex o playback and recording without requiring a built-in PC sound card USB 2.0 interface, backward compatible with USB 1.1 Complies with USB o Device Class Specification v1.0 Supports USB full-speed data transfer up to 12 Mbps Equipped with 3 input terminals (including one optical input) and 3 output terminals, plus one optical S/PDIF output Output configuration: 5.1 channels with fiber SPDIF System setup: PC + sound card + amplifier + 5.1 speakers Ideal for HTPC home theater systems and users with high o quality demands, such as movie viewing, gaming, and karaoke Can be used with standard headphones for voice chat and online singing applications Experience authentic AC-3 or DTS surround sound in your digital home theater, or connect directly to an active 5.1 speaker system Package includes: 1 x Sound Card