NVR Network Video Recorder | 4 Ch | 1x SATA | 4x PoE | SKU: NVR501-04B-P4

$459.00 $369.00 MAP
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NDAA Compliant NVR

4-Ports PoE Camera Input

H.265/H.264 Video Compression

Supports VCA & Smart Features

UNV NDAA Compliant NVR - 4 Channels | Ultra H.265 Support | PoE Inputs | UMD

Uniview's B series NVR is capable of displaying and recording up to 8MP cameras and has an improved decoding ability.  One new feature launched with the B series is ultra motion detection which allows the NVR to record specific type of motion based on humans or vehicles rather than just changes detected in the pixels leading to more meaningful security footage. 

Model Features:

  • HDMI & VGA simultaneous outputs
  • Allows for motion recording based on smart detection of humans/vehicles
  • Supports panoramic camera and dual lens PTZs
  • 80Mbps total bandwidth
  • 4 Channel Synchronous Decoding up to 8MP resolution (6ch @ 5MP, 8ch @ 4MP)
  • 1x SATA hard drive capacity

National Defense Authorization Act or NDAA was modified to restrict the "use" of certain brands, and their OEMs, when dealing with the federal government and went into full effect August 2020.  Use of restricted products affects government contractors even on their own security systems on their private property.   Recently, the FCC has followed suit and also banned those same manufacturers.  This product is made with 100% NDAA compliant parts.
PoE Icon
This NVR has 4-ports of integrated PoE (Power-over-Ethernet), allowing a single Cat5/6 cable for the power delivery and network connection on the connected IP cameras.  Uniview IP cameras are designed to be Plug-N-Play when connected to this NVR.
H.265 Icon
Ultra H.265 technology is designed to use less hard drive space and bandwidth. Powered by U-code technology which was exclusively developed by Uniview to have excellent bitrate control and bandwidth reduction. It is not only a compression technology, but a cutting edge end-to-end solution.
Smart Icon
Supports VCA and Smart features such as line-crossing, intrusion detection, human/vehicle detection, and ultra motion detection.  These modes are designed to eliminate false alerts to allow you to stay informed by true push-notifications.
Decode Icon

Extreme decoding ability means being able to playback more channels at one time during surveillance footage review.

4 x 4K@30, 6 x 5MP@30, 8 x 4MP@30, 9 x 4MP@25, 10 x 3MP@30, 16 x 1080p@30

Microphone Icon

Support audio recording when connected to Uniview cameras with built-in microphones.  Uniview makes it easy to either enable or disable audio in the camera setup menu


Type Description Version Link
Specification Sheet Printable specification sheet showing all technical features of the NVR Download
User Manual User manual for Uniview Network Video Recorders v1.00 Download
Quick Guide Quick setup guide from Network Video Recorders v1.04 Download
Type Description Version Link
EZStation VMS (Video Management Software) allows unified management of Uniview's IP Cameras & NVRs B1130.3.11.0 Download
EZTools EZTools 2.0 is a tool kit for device management, channel management, device upgrade and maintenance, recording time and capacity calculation. R1122.2.3.2 Download
EZPlayer EZPlayer is a media player tools for local recordings, supporting both .ts and .mp4 file types B1111.1.6.0 Download
Type Description Version Link
EZStation VMS (Video Management Software) allows unified management of Uniview's IP Cameras & NVRs B1113.3.10.0 Download
Video/Audio Input
IP Video Input4-ch8-ch
Audio Input1-ch, RCA
Incoming Bandwidth80Mbps
Outgoing Bandwidth64Mbps
Remote Users128
BrowserIE(IE10/11) for Windows
Firefox (version 52.0 and above) for Windows
Chrome(version 45 and above) for Windows
Edge(version 79 and above) for Windows
Video/Audio Output
4K (3840x2160)@30, 1920x1080p@60, 1920x1080p@50, 1600x1200@60, 1280x1024@60, 1280x720@60, 1024x768@60
1920x1080p@60, 1920x1080p@50, 1280x1024@60, 1600x1200@60, 1280x720@60, 1024x768@60
Recording Resolution8MP/6MP/5MP/4MP/3MP/1080p/960p/720p/D1/2CIF/CIF
Audio Output1-ch, RCA
Two-way Audio1-ch, RCA(Using the audio input and output)
Audio CompressionG.711A, G.711U
Synchronous Playback4-ch8-ch
Liveview display1/41/4/6/8/9
Corridor Mode Screen3/43/4/5/7/9
FTP/Schedule/Event Snapshot4-ch snapshot, up to D1 resolution
Decoding formatUltra 265/H.265
Live view/Playback8MP/6MP/5MP/4MP/3MP/1080p/960p/720p/D1/2CIF/CIF
Capability4 x 4K@30, 6 x 5MP@30, 8 x 4MP@30, 9 x 4MP@25, 10 x 3MP@30, 16 x 1080p@30
Hard Disk
SATA1 SATA interfaces
CapacityUp to 8TB for each disk
(The maximum HDD capacity varies with environment temperature)
VCA Detection by CameraIntrusion Detection, Cross Line Detection, Enter Area, Leave Area, Defocus Detection, Scene Change Detection, Object Left Behind, Object Removed, Auto Tracking, SMD(Smart Motion Detection)
VCA SearchBehavior Search, People Counting Report
People countingPeople Flow Counting, Crowd Density Monitoring
Smart Intrusion Prevention (SIP), SMD by CameraTotal 4-ch
General Alarm
General AlarmMotion, Tampering, Human Body Detection, Video Loss, Alarm Input, Audio Detection
Alert AlarmIP Conflict, Network Disconnected, Disk Offline , Disk Abnormal, Illegal Access, Hard Disk Space Low, Hard Disk Full, Recording/Snapshot Abnormal
External Interface
Network Interface1 RJ-45 10M/100M self-adaptive Ethernet Interface
USB InterfaceFront panel: 1 x USB2.0, Rear panel: 1 x USB3.0
Alarm InNA
Alarm OutNA
Interface4 RJ-45 10M/100M self-adaptive Ethernet Interface8 RJ-45 10M/100M self-adaptive Ethernet Interface
Max PowerMax 30W for single port
Max 50W in total
Max 30W for single port
Max 75W in total
Supported StandardIEEE 802.3af/at
Power Supply48V DC/1.35A
Power Consumption: ≤ 10W (without HDD)
52V DC/1.8A
Power Consumption: ≤ 10W (without HDD)
Working Environment-10°C~+ 55°C (+14°F~+131°F), Humidity ≤ 90% RH (non-condensing)
Dimensions (W×D×H)260mm × 222mm × 47mm (10.2" × 8.7" × 1.8")
Weight (without HDD)≤ 0.98Kg (2.16lb)
CertificationCE, FCC, UL, RoHS, WEEE
CEEN 55032: 2015, EN 61000-3-3: 2013, EN IEC 61000-3-2: 2019, EN 55035: 2017
FCCPart15 Subpart B, ANSI C63.4

Aiming Towards Excellence

Uniview is the pioneer and leader of IP video surveillance. Originally
introduced IP video surveillance system in China but, through consistent innovation,
Uniview now is the fourth largest manufacturer in the world. We continue to
reinvest into our technology, providing our customers with the best possible surveillance

With 16 years of technological exploration, Uniview continues to evolve, expanding
from video surveillance to AIoT. Our video surveillance product lines range includes
IP cameras, NVR, Encoders, Decoders, Storage Expansion, Client Software and Smart
Device Apps.  Our AIoT products range
from digital displays, intelligent access control, smart office, and smart

Uniview provides professional solutions covering all industries, delivered
more than 7000 cases in smart city, transportation, industrial park,
commercial, bank, residential, school, healthcare etc.

Our Vision:

Unlimited New View

Our Mission:

The Uniview team considers themselves to be citizens of the world and endeavors
to build a safer world based on ethics and professionalism, always moving
forward with fortitude to achieve progress and innovation.


To continuously improve through innovation while remaining pragmatic. To be collaborative
with our partners to allow us to grow together.  

Social Responsibility:

Uniview strives to protect the environment through efficient manufacturing
that minimizes waste.  As we continue to
grow, we stay focus on being eco-friendly in both our production facilities and
our business practices. Our manufacturing facilities are certified ISO14000 and

Uniview also shares humanitarian beliefs and feels strongly that we should
give back to society. We have volunteer teams that has held several charitable
activities providing aid to people in need.

industry leading
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