Lorex L22WD1604501 16 Channel DVR Surveillance System The L22WD1604501 incorporates multifunction usage in addition to a professional 16 Channel Security System. The 22" Wide LCD has inputs for PC usage, RGB for entertainment viewing and digital picture display. Incorporated into this panel is a 500GB Seagate Security Certified SATA hard drive expandable to 1TB. Connect to Network to control, record and view over the Internet from any PC utilizing the free Lorex DDNS secure connection. Fully functional with 240fps record speed, options to set recording upon motion detection, continuous or user determined onoff time. Shipped with 4 color indooroutdoor security cameras with 50ft. night vision, you can expand up to 12 additional cameras as the need arises.