This document describes the features of the STi7111 low-cost HDTV satellite set-top box decoder, including support for Microsoft VC-1, MPEG-2, and H.264 formats. It features a high-performance CPU running at 450 MHz, supports various operating systems such as Linux, Windows CE, and OS21, integrates DVB-S2 and DVB-S front-end demodulators, and supports HD video and audio decoding.