Supports AES/EBU, IEC60958, S/PDIF Truly supports 5.1 and 7.1 channel o output; 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 sampling rate; DTS-CD at 44.1kHz requires sample rate conversion Compatible with Windows 98/ME/2000/XP/Vista/Win7/Win8 and Mac OS 9.1 (stereo output only on Mac) Enables full duplex 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 12Mbps Features 3 input terminals, including one optical input Provides 3 output terminals and 1 optical S/PDIF output Output configuration: 5.1 channels plus fiber optic SPDIF System setup: Requires PC, sound card, amplifier, and 5.1 speaker system Ideal for HTPC home theater setups 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 Delivers authentic AC-3 or DTS surround sound experience in digital home theaters; supports direct connection to active 5.1 speakers Package includes: 1 x Sound Card