4 Channel Security DVR for recording analog security cameras. Our DVR are pentabrid units that support a variety of signal types including HDCVI, TVI, AHD, CVBS, and IP cameras. All of the recorders are professional quality, with OS embedded on a chip. Connect to an internet connection and setup remote viewing easily in minutes without any configuration. If you're a Pro or Techie, you can even do port forwarding. All of our recorders allow for motion activated push notifications to a smartphone, and come with easy to setup firewall and user lockout for cyber attack prevention.