The DC8405-420 is a security recording system with 8 channel H.264 DVR and 4 wired camera. 500GB hard drive. Security systems deter potential intruders while providing added safety and security. Stay connected even while you are out with remote access from your computer or mobile device. Easy installation and connection to an existing monitor or TV permits you to record, playback, backup records, access the internet and PTZ control all with easy to use point and click operation.