Lorex Mobile Remote View 8 Channel Security DVR System with 4 Security Cameras LH118501C4 real-time recording on 8 channels at 340X240 resolution 500 gigabyte 24/7 100% duty cycle hard drive pre-installed, expandable up to 2TB Free Lorex DDNS service for guaranteed remote connection VGA or Composite output to connect to TV or Computer Monitor PTZ Camera Control via RS485 port