Dahua Technology N42B2P 8-Channel 8MP Security NVR (No HDD)


SKU: N42B2P Categories: , , Tags: , , ,


Dahua Technology Lite Overview

Record from and manage up to 8 cameras with the N42B2P Lite Series 8-Channel 8MP NVR (No HDD) from Dahua Technology at resolutions up to 3840 x 2160. Equipped with two SATA ports, the NVR can be configured to have an internal storage of up to 8TB (HDDs available separately). H.265, H.264, and MJPEG compressions keep file sizes manageable while maintaining the best quality possible. Two-way audio is possible thanks to an audio input and output.

This NVR supports simultaneous HDMI and VGA outputs, as well as up to 128 users. ONVIF-compliance for version 2.4 enables interoperability when combined with 4K cameras.Embedded quad-core processor and Linux OSHDMI and VGA simultaneous video output10/100/1000M Ethernet port8 x PoE portsSupports Automatic Network Replenishment (ANR) technologySupports network cameras from Dahua, Arecont Vision, Axis Communications, Bosch, Brickcom, Canon, CP Plus, DynaColor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Videotec, Vivotek, and othersSmart Add functionality enables the NVR to automatically detect and list IP cameras, simplifying the process of adding cameras to the NVRIVS (intelligent video system) recording for standard intelligence at-the-edge features, premium features to detect motion, tripwire and intrusion violations, and abandoned or missing objects, and advanced features for facial detection, people counting, and heat mappingHeat Map advanced IVS feature highlights areas with the highest concentration of people, and the data can be exported into a customized report to aid in business or forensic analysisAlarm inputs for 4 channelsTrigger events include recording, PTZ, tour, alarm out, video push, email, FTP, snapshot, buzzer, and screen tipsVideo detection includes motion detection, video loss, and tamperingOSD for camera title, time, video loss, camera lock, motion detection, and recording16 kb/s to 20 Mb/s bit rate per channelDewarping mode corrects distortion in circular panoramic views from fisheye lenses1 x USB 3.0 port & 1 x USB 2.0 portBackup via USB device and networkUp to 128 usersSupports iOS and Android mobile devices1 RU rack-mountableOptional PFH101 rackmount tray available separately

Dahua Technology Lite Specs


Main ProcessorEmbedded quad-core processor
Operating SystemEmbedded Linux

Video & Audio

IP Camera Inputs8 channels
Audio1 x RCA, 1-channel input
1 x RCA, 1-channel output


Interface1 x HDMI
1 x VGA
Resolutions3840 x 2160
1920 x 1080
1280 x 1024
1280 x 720
1024 x 768
DecodingMaximum Decoding:
2 channels of 4K / 6 MP at 30 fps
3 channels of 5 MP at 30 fps
4 channels of 4/3 MP at 30 fps
4 channels of 1080p at 30 fps
8 channels of 1080p at 60 fps
Display Split1/4/8/9
OSDCamera title, time, video loss, camera lock, motion detection, recording


CompressionH.265, H.264, MJPEG
Supported IP Camera Resolution8 MP
6 MP
5 MP
4 MP
3 MP
1.3 MP
Maximum Bandwidth200 Mb/s incoming
Bit Rate16 kb/s to 20 Mb/s per channel
Recording ModeManual
Schedule (regular, continuous)
Motion detection (video detection, motion detection, tampering, video loss)
Recording Intervals1 to 120 minutes, default 60 minutes
Pre-Recording: 1 to 30 seconds
Post-Recording: 10 to 300 seconds

Video Detection & Alarm

TriggersRecording, PTZ, tour, alarm out, video push, email, FTP, snapshot, buzzer, and screen tips
Video DetectionMotion detection
MD Zones: 396 (22 x 18)
Video loss & tampering
Alarm Input4 channels
Low level effective, green terminal interface
Relay Output2 channels
NO/NC programmable, green terminal interface

Playback & Backup

Search ModesTime/date, alarm, motion detection & exact search (accurate to one second), smart search
Playback FunctionsPlay, pause, stop, rewind, fast play, slow play, next file, previous file, next camera, previous camera, full screen, repeat, shuffle, backup selection, digital zoom
Backup ModesUSB device, network

Intelligent Video

Standard FeaturesIVS Triggers:
Tampering with the camera
Camera loses or changes focus drastically
Error writing to an onboard microSD card
Error sending or receiving data over the network
Unauthorized access to the camera
Premium FeaturesIVS Triggers:
Motion: An object moves through any part of the scene
Tripwire: A target crosses a user-defined line
Intrusion: A target enters or exits a defined perimeter
Scene Change: A person or object moves the camera to change the scene or covers the camera to obscure the scene
Abandoned/Missing Object: A target leaves an object in designated area, or a target removes an object from the same designated area
Advanced FeaturesRecording Triggers:
Facial Detection: Detects and captures a snapshot of a human face in a defined area within a scene
People Counting: Measure the number of customers, visitors, or passengers in a surveillance scene
Heat Map: Generates a visual representation of data


Third-Party SupportDahua, Arecont Vision, Axis, Bosch, Brickcom, Canon, CP Plus, Dynacolor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Videotec, Vivotek, and others


Ethernet1 x RJ45 port, 10/100/1000M
PoE8 x ports, IEEE 802.3af/at
Network FunctionHTTP, HTTPS, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP filter, PPPoE, DDNS, FTP, alarm server, IP search
Support for Dahua IP cameras, DVRs, NVS
Maximum User Access128 users
Mobile OS SupportiOS & Android
InteroperabilityONVIF 2.4, CGI conformant


Internal HDD2 SATA ports, total capacity up to 8 TB (HDDs available separately)
HDD ModeSingle

Auxiliary Interface

USB1 x USB 3.0
1 x USB 2.0


Power Supply100-240 VAC, 60/50 Hz
Power ConsumptionNVR:
Total PoE Budget25.5 W single port, 130 W total
CertificationsCE: EN55032, EN55024, EN60950-1 Safety: UL 60950-1, CAN/CSA C22.2 No.60950-1
Electromagnetic Compatibility (EMC): FCC CFR 47 Part 15 Subpart B, ANSI C63.4-2014
Operating Temperature14 to 131°F / -10 to 55°C
Storage Temperature-4 to 158°F / -20 to 70°C
Storage Humidity0-90% RH
Rack Mount1 RU
Dimensions14.8 x 12.9 x 2.1″ / 375 x 327.5 x 53 mm
WeightWithout HDD: 5.7 lb / 2.6 kg

Additional information

Weight 10 lbs
Dimensions 18 × 7 × 17 in