Supports AES/EBU, IEC 60958, S/PDIF Supports 5.1 and 7.1 channel audio output Compatible with 5.1 speaker systems Sampling rates up to 48 kHz (supports 32 kHz, 44.1 kHz, and 48 kHz) Digital audio recording capability Fiber optic output supports 48 kHz sampling rate only Compatible with Windows 98, ME, 2000, XP, Vista, Windows 7, Windows 8, and Mac OS 9.1 (stereo output only on Mac) Full-duplex audio playback and recording without requiring an internal PC sound card USB 2.0 interface (backward compatible with USB 1.1) Compliant with Audio Device Class Specification v1.0 Supports USB full-speed data transfer up to 12 Mbps Three input terminals (including one optical input) Three output terminals plus one optical output terminal Designed for use with PCs, sound cards, amplifiers, and 5.1 speaker systems Ideal for home theater PCs (HTPC), movie watching, gaming, and voice communication Can be used with standard headphones for voice chat and online communication Enables AC-3 and DTS surround sound playback when connected to compatible receivers or active 5.1 speakers Package includes: 1 x Sound Card Note: Due to lighting and screen settings, actual product color may vary slightly from images. Slight dimensional variations may occur due to manual measurement.