Lorex LH118501C4LE13F 8-Channel Digital Video Recorder with 13-Inch LED Monitor and 4 Security Cameras Record @ CIF, HD1 or D1 (740X480) resolution Pre-installed 500GB 24/7 100% duty cycle hard drive, expandable up to 2TB Audio in/out: 2/2 ; PTZ Camera support, 2 BNC output, VGA out 4 included cameras: indoor / outdoor; 480TVL Hi Resolution; 50ft IR Night Vision; 50 degree field of view;13-Inch LED Monitor Backup critical video to USB flash drive, external HDD, or external DVD/RW