The Arris DCX3200-M is a high-definition (HD) digital cable set-top box designed for Moto/Arris cable systems, supporting MPEG-2 and MPEG-4 AVC services. It features a 1 GHz tuner, HDMI output with 1080p support, and Dolby Digital Plus audio. The "M" model typically includes MoCA technology, allowing it to act as a multimedia client to access content from other compatible devices in the home.