This document summarizes the TechnoTrend S2-3650CI HDTV receiver box. It connects to a PC via USB 2.0 port, allowing HDTV reception on computers. It supports various encryption systems and has a CI slot for pay TV access. Installation and setup are simple - the device is automatically detected and drivers installed. The included software allows viewing live and recorded TV, with an EPG, favorites lists, and timer functions. It receives channels from various satellites but does not support DiSEqC 1.1 switching. Overall it provides an affordable way to get HDTV reception on a PC.