This is a Digital Video Recorder that will record video input from the Security Camera/CCTV connected to this unit. It will provide rock-solid, easy-to-use performance, which makes it ideal for multi-camera law enforcement, industrial, commercial and individual applications. Connect the DVR to a TV or LCD flat screen and monitor up to 4 camera locations at a time. The video records onto the pre-installed 250GB hard drive to allow play back. For Product Questions contact Q-SEE: (877) 998-3440 or cs@dpsi-usa.com.