The author of the article description is obviously a mistake. The Trust USB Soundcard has all appearances, no digital inputs / outputs. Neither Coaxial even via optical fiber. The sound of the box is good. However, in conjunction with a high-end amplifier puts you with a slight hum in the upper volume range. Under XP drivers are required, which can be downloaded from the Internet without problems (Trust website). Since I can not elicit the USB Sound Box PCM Strem, the box is a bad buy. For notebook PC and a simple 5.1 speaker system, the Trust SC-5500P 5.1 External Surround Sound Card will be OK.