Motorola DCX3400 HD / DVR Set Top Cable Box with Standard 320GB Dual Tuner Hard Drive Pre-installed Multistream CableCard (M-Card) Digital Video Recording (DVR) with support for dual recording and watch-and-record functionality 320GB hard drive with shock mounting and fan Standard-definition (SD), enhanced-definition (ED), and high-definition (HD) MPEG-2 & MPEG-4 video support with output scaled to 480i, 480p, 720p, or 1080i Full-featured front panel display and controls