The external USB sound card provides a cost-saving upgrade from built-in/on-board sound that turns desktop/laptop sound into a home theater-ready audio solution. Providing a robust USB audio experience, the USB sound card connects to a host computer through a single USB 2.0 connection, to deliver impressive external audio capability that can instantly be swapped between systems, without having to open the computer case for installation. A more than suitable solution for home theater, gaming or multi-media presentations. Features: 1. Support AES/EBU, IEC60958, S/PDIF. Supports 5.1 surround sound, 48KHz sampling rate. 2. Supports digital record standard: 32Khz, 44KHz, 48KHz sampling rate. 3. Supports audio mixing and recording. Plug and play, convenient to use. 4. Suitable for Win98SE/ME/2000/XP/7/Mac OS 9.1 (For Mac version has 2 channel playback only) 5. Supports full duplex playback/recording audio stream without sound card in PC. Compatible with USB 1.1. 6. Compliant with USB audio device class v1.0. 7. Compatible with USB 1.1. Supports USB 12M Serial data transmission. 3 Input terminals and 3 output terminals. Specifications: Color: Blue Size: 8.9 * 6 * 2cm / 3.5 * 2.4 * 0.8in Material: Metal Port: USB Chip: CM6062 Installation: External Input and output interface: optical fiber SPDIF, linear input Support channel: 5.1 channel Package weight: 130g Package List: 1 * Host 1 * CD 1 * USB Cable 1、Support AES/EBU, IEC60958, S/PDIF. Supports 5.1 surround sound, 48KHz sampling rate. 2、Supports digital record standard: 32Khz, 44KHz, 48KHz sampling rate. 3、Supports audio mixing and recording. Plug and play, convenient to use. 4、Suitable for Win98SE/ME/2000/XP/7/Mac OS 9.1 (For Mac version has 2 channel playback only) 5、Supports full duplex playback/recording audio stream without sound card in PC. Compatible with USB 1.1.