Supports for AES/EBU, IEC60958, S/PDIF. Supports 5.1 surround sound, 48KHz sampling rate. Supports digital record standard: 32Khz, 44KHz, 48KHz sampling rate. Supports audio mixing and recording. Compatible with Win98SE/ME/2000/XP/7/Mac OS 9.1 (Mac version has 2 channel playback only) Supports cording audio stream without sound card in PC. Compatible with USB 1.1. Supports USB 12M Serial data transmission. 3 Input terminal and 3 output terminal. Plug-in, convenient to use.