With built-in motion detection and filtered search, the WJ-ND400 offers 2x and 4x digital zoom on live or recorded video, Panasonic camera control for pan/tilt, zoom, focus, brightness, preset position and auto mode, with quick IP setup for Panasonic i-Pro network cameras. Up to 9 hot-plug hard disk drives can be installed for maximum on-board storage capabilities, and up to 16 clients can monitor and control the WJ-ND400 simultaneously. Eight recording programs can be set for each individual camera, with camera assignment of 1 to 8 groups for easy browsing. Multiple display modes and flexible playback controls facilitate monitoring of images. An embedded real-time operating system offers supreme reliability, while RAID5/6 provides redundant recording for data security.