This feature rich four channel Digital Video Recorder is perfect for the budget-conscious customer. The system supports up to 4 security cameras making it perfect for your home or small business. It can be used as a Stand Alone system (no PC or Monitor required) due to built-in operating system and 1.5" LCD screen (For close-up viewing a TV or monitor is suggested). Unlike VCR units, DVR systems record high quality video in digital format (Requires HDD - Not Included) that will not deteriorate over time. There is no need for frequent tape changing and video searches are based on date and time without the hassle of rewinding and forwarding. The USB port on the back of the system makes linking to your PC a snap. You can capture and convert the video into AVI files and store them for later viewing. The system's video output can also be easily connected to a TV or an LCD Monitor for real time viewing. The motion sensor function (One for each channel) can be configured to alert you when activity is detected by sounding an alarm. Best of all is the system's reliable and maintenance free embedded operating system which is not prone to viruses or system crashes like PC-based DVRs. Brand new in Box 4 Channel Stand Alone Security Digital Video Recorder Maintenance Free Embedded Operating System Displays and Records up to 4 Video Channels Simultaneously Selectable Quad or Channel Switching High-Resolution Modes MPEG Digital Image Compression Technology Built-in 1.5” TFT High Resolution Color Display Adjustable Image Recording and Display Quality Advanced Motion Detection Function Password Protected Menu Easy File Backup via USB PC Link Convert and Archive Video in AVI format Specifications: Operating System: RTOS Video Input 1: S-Video to TV or Monitor Video Input: 4 Channels. Composite video signal 1 Vp-p 75Ω BNC Video Loop-through: 4 Channels. Composite video signal 1 Vp-p 75Ω BNC Video Output 2: Dual BNC Composite video signal outputs 1 Vp-p 75Ω Video Display: 1 Camera, 4 Camera Horizontal Resolution: NTSC 720 x 480 Sensor Inputs: 4 Sensor Inputs Alarm Outputs: 1 Alarm Output Adjustable Frame Recording Rates: 1, 2, 3, 4, 5, 7, 10, 15, 30 FPS Video Quality Settings: High, Normal, Low Record Mode: Normal, Schedule, Motion Detect Recording Medium: Up to 320GB IDE Hard Disk Drive (Not Included) Fast Forward Speed: 1x, 2x, 4x, 32x, 64x Rewind Speed: 1x, 2x, 4x, 32x PC Link: USB Device (2.0) System Recovery: Auto recovery after power reconnected Power: DC 12V Package Includes: 4 Channel Embedded Digital Video Recorder 12V AC Power Adapter 3 x Sets of RCA Connector Cables 10 x BNC to RCA Adapters User Manual