The Roku XD does not offer component video and optical audio output; it does not include the USB port (for future local media playback); and it offers single-band 802.11n Wi-Fi. I have had mine for 3 years and it works great. I watch free movies, I am a member of HULU and love to watch shows on my tv. You can get all kinds of entertainment from my computer. A lot of channels you can add for here to watch for free and also there are music channels you can listen too.