* H.264 video compression
* Special for HD-SDI cameras
* 4-ch 1920×1080P resolution real-time recording (DS-7204HFHI-ST)
* 4-ch 1280×720P resolution real-time recording (DS-7204HFHI-SE)
* HDMI and VGA output at up to 1920×1080P resolution
* 4-ch synchronous playback
* HDD quota and group management