A stand alone DVR is designed specifically for CCTV systems. It uses computer hard drives to store video information and an embedded operating system to control the functions of the DVR; this type of recording device is most commonly used with current CCTV systems. Digital video recorders have various settings to enable more video information to be recorded at the required times using technology such as video motion detection, this means that the images from the cameras are only recorded when the information of the image changes, for example a person walking in front of the camera. DVRs have a multiplexer built in which enables the user to view multiple images on the screen at any given time by segregating the screen image. Many DVRs can also be connected to a network to allow remote access.

DDN-N6188 16 Channel Network Video Recorder
16CH 1080P NVR, Up to 5 Megapixels resolution recording, HDMI and VGA output at up to 1920X1080P resolution, 16-ch simultaneously playback, HDD quota and group management,Built-in 8 independent PoE network interfaces. 3TB
DDN-N7732 32 Channel Network Video Recorder

32CH 1080P NVR, Third-party network cameras supported, Up to 5 Megapixels resolution recording, HDMI and VGA output at up to 1920X1080P resolution, 16-ch simultaneously playback, HDD quota and group management,Built-in 8 independent PoE network interfaces. 6TB

DDN-N96128 128 Channel Network Video Recorder
128CH NVR, Third-party network cameras supported, Record from and Manage Up to 128 Cameras, Up to 12MP Recording Resolution, Up to 192TB HDD Capacity, H.265(+), H.264(+), MPEG-4 & MJPEG, Alarm & Audio Input/Output, USB 2.0/3.0, RS-232, RS-845, eSATA, 768 Mbps Incoming Bandwidth, 512 Mbps Outgoing Bandwidth, 1x VGA & 2x HDMI Outputs, ONVIF-Compliant, Version 2.5. HDD:32TB
DDN-N9664 64 Channel Network Video Recorder
64CH 1080P NVR, Third-party network cameras supported, 1920X1080P resolution real-time recording, HDMI and VGA output at up to 1920X1080P resolution, 16-ch simultaneous playback, HDD quota and group management. 18TB
DDN-WJND400T8 Panasonics Network Video Recorder with 8 removable 1TB
WJND400/8000 Panasonic Network Disk Recorder with 8 removable 1TB hard disk drives, total storage capacity = 8TB, with support for up to 64 Ethernet-linked network cameras. (Warranty: NVR - 1 Year, Hard Drive - 3 Years)
DDN-WVCU950 Panasonic Universal System Controller (Ethernet)
Panasonic Universal System Controller (Ethernet)
DDS-T8424 24 Channel 5MP HD-TVI 4.0 5-in1 DVR
H.265+ 24 Channel Video Recorder, 24 channels support HD-TVI/AHD/ANALOG/CVI/IP input (5 in 1) up to 5MP, Up to 8-ch 8MP IP cameras input, Support Live View, Storage, Live View, Storage, Playback up to 24 HD-TVI/Analog Cameras + 8 IP Cameras up to 8MP, Up to 32CH 4K(8MP) IPC input, Up to 4k(3824X2160) HDMI Video Output, HDMI 1/VGA output at 1920X1080, HDMI 2 output@ 4K, CVBS output, 1.5U case 4 SATA HDD RAID, 2 USB 2.0/ 1 USB 3.0. 8TB HDD
DDS-T8432 32 Channel 5MP HD-TVI 4.0 5-in1 DVR
H.265+ 32 Channel Video Recorder, 32 channels support HD-TVI/AHD/ANALOG/CVI/IP input (5 in 1) up to 5MP, Up to 8-ch 8MP IP cameras input, Support Live View, Storage, Live View, Storage, Playback up to 32 HD-TVI/Analog Cameras + 8 IP Cameras up to 8MP, Up to 40CH 4K(8MP) IPC input, Up to 4k(3824X2160) HDMI Video Output, HDMI 1/VGA output at 1920X1080, HDMI 2 output@ 4K, CVBS output, 1.5U case 4 SATA HDD, 2 USB 2.0/ 1 USB 3.0. 8TB HDD
DDS-T8504 4 Channel 5MP HD-TVI 4.0 5-in1 DVR
H.265+ 4 Channel Video Recorder, 4 channels support HD-TVI/AHD/ANALOG/CVI/IP input (5 in 1), 4 channels support up to 5MP HD-TVI input, Up to 2-ch 6MP IP cameras input, Support Live View, Storage, Playback up to 4 HD-TVI/Analog Cameras + 2 IP Cameras, Up to 1080P HDMI Video Output, 4/1 RCA I/O, CVBS Output, 1 SATA HDD, 2 USB 2.0. 2TB HDD
DDS-T8508 8 Channel 5MP HD-TVI 4.0 5-in1 DVR
H.265+ 8 Channel Video Recorder, 8 channels support HD-TVI/AHD/ANALOG/CVI/IP input (5 in 1), 8 channels support up to 5MP HD-TVI input, Up to 2-ch 6MP IP cameras input, Support Live View, Storage, Playback up to 8 HD-TVI/Analog Cameras + 2 IP Cameras, Up to 4k HDMI Video Output, 4/1 RCA I/O, CVBS Output, 2 SATA HDD, 2 USB 2.0. 2TB HDD
DDS-T8516 16 Channel 5MP HD-TVI 4.0 5-in1 DVR
H.265+ 16 Channel Video Recorder, 16 channels support HD-TVI/AHD/ANALOG/CVI/IP input (5 in 1), 16 channels support up to 5MP HD-TVI input, Up to 2-ch 6MP IP cameras input, Support Live View, Storage, Playback up to 16 HD-TVI/Analog Cameras + 2 IP Cameras, Up to 4k HDMI Video Output, 4/1 RCA I/O, CVBS Output, 2 SATA HDD, 2 USB 2.0. 4TB HDD
DDS-TVI04T 4CH TVI Hybrid 1080P DVR
4-Ch, H.264 & Dual-stream video compression, Support HD-TVI/Analog/IP camera triple hybrid, Full channel 1080P@ 12fps or 720P@ 30fps recording, HDMI and VGA output at up to 1920X1080P resolution, Long transmission distance over coax cable, Support up to 4ch synchronous playback, 2TB HDD.
DDS-TVI08T 8CH TVI Hybrid 1080P DVR
8-Ch, H.264 & Dual-stream video compression, Support HD-TVI/Analog/IP camera triple hybrid, Full channel 1080P at 30fps recording, HDMI and VGA output at up to 1920x1080P resolution, Long transmission distance over coax cable, Support up to 8ch synchronous playback, 2TB HDD.
DDS-TVI416T 16CH TVI Hybrid 1080P DVR
16-Ch, H.264 & Dual-stream video compression,Support HD-TVI/Analog/IP camera triple hybrid, Full channel@ 1080P resolution real-time recording,HDMI and VGA output at up to 1920X1080P resolution,Long transmission distance over coax cable,Support up to16-ch synchronous playback, 2TB HDD.
DDS-TVI8424 24H TVI 1080P Full HD DVR (8IP)
24 Channel HD-TVI DVR 2U. H.264 & Dual-stream video compression, Support HD-TVI/analog/IP camera triple hybrid, add up to 16 IP cameras, Full channel 1080P@15fps, 720P@30fps recording, HDMI and VGA output at up to 1920X1080P resolution, Support NAS, IP SAN Network Storage, 8 x POS, Long transmission distance over coax cable, Support up to 24-ch synchronous playback. Hard Drive:5TB.
DDS-TVI8432 32H TVI 1080P Full HD DVR
HD-TVI 32 Channel 1080P Full HD DVR, H.264 & Dual-stream video compression, Support HD-TVI/analog/IP camera triple hybrid, Full channel 1080P@12fps, 720P@30fps recording, HDMI and VGA output at up to 1920X1080P resolution, Long transmission distance over coax cable, Support up to 32-ch synchronous playback. 4TB professional video hard drive. H.264 & Dual-stream video compression, Tri-brid technology supports HD-TVI/analog/IP camera, Full channel 1080P@12fps, 720P@30fps recording, HDMI and VGA output at up to 1920�1080P