VIVOTEK’s ND9441 and ND9541 are the brand new H.265 Linux-based embedded standalone NVRs. Equipped for up to 16-CH/32-CH network cameras, the NVRs feature well-built ONVIF compliant and scalable configuration with VAST CMS empowering users to set up and manage advanced IP surveillance systems with ease. Both NVRs also support remote and mobile access, via VIVOCloud and iViewer app, for both iOS and Android handheld devices, providing users an open, flexible and intelligent NVRs for seamless use in small to medium sized video surveillance applications.

ND9541 overview

With H.265 compression technology and embedded with 4 HDD design providing up to 32TB, the ND9441 and the ND9541 offer greater than 30% more recording capacity than systems employing H.264 compression. This advance gives users larger storage space for longer durations of video recording.

In order to provide uninterrupted service even when the network is temporally disrupted, both NVRs are also equipped with dual Ethernet ports, as well as providing the flexibility to connect with network cameras in network failover situations. In addition, the RAID 0/1/5 configuration provides further data security in the rare event of a hard drive failure.

Further enabling the recording of high-quality and detailed images, the ND9441 and the ND9541 support a maximum network camera resolution of 12-Megapixels. To intelligently manage bandwidth while maintaining this high-quality, the “Auto Adaptive Stream” function will adjust the display resolution automatically for each different layout type.

Moreover, both NVRs support VIVOTEK’s fisheye network camera “Fisheye Dewarp” function, which provides multiple de-warping modes in live view and playback, ensuring the correct angle of video view and detailed information for flexible usage. Further, to quickly and intuitively find any target event, the ND9441 and the ND9541 are equipped with “Story-Board Search” function, which provides a glimpse of past recordings over an intuitive timeline.


VIVOCloud App provides users an unbeatable experience for mobile viewing NVR video via a mobile device from anywhere, at any time.

Fisheye Dewarp

VIVOTEK’s NVR offers both LiveView and Playback modes for one fisheye network camera simultaneously. They also provide multiple fisheye de-warp display modes, including 1O, 1P, 1R, 1O3R, 1O8R, allowing users to monitor any angle, or to enjoy precise detailed images for a total surveillance experience.

Story Board Event Search

To quickly and intuitively find any target event, we provide a glimpse of past recording over an intuitive timeline, allowing users to direct playback and archive their video within 10 seconds.

Finally, the ND9441 and the ND9541 support HDMI and VGA local video output, so users can control the GUI OSD interface via mouse & keyboard, eliminating the need for a separate PC to search video or playback from the NVRs. Moreover, the intuitive and friendly VIVOTEK GUI design gives users an even smoother experience of control than ever before.


  • H.265/H.264 Compression Technology
  • 1080p Real-time
  • 4K Display
  • Plug & Play One Button Auto Setup
  • VIVOCloud App & Portal for 24/7 Surveillance
  • VIVOTEK Camera Configuration and VAST CMS Integrated
  • Live and Playback Fisheye Dewarp
  • Support RAID 0/1/5 Storage
  • Story Board Event Search
  • Up to 12MP Camera Liveview & Playback
  • Dual LAN Network Ports with Failover Function
  • ONVIF Open Platform (Project Support Function)
  • Watermark




Hardware Information

Model ND9441 ND9541
Product Description H.265 16-CH Embedded NVR H.265 32-CH Embedded NVR
Hardware Information
OS Embedded Linux
CPU ARM Processor
Flash 256 MB
Watchdog Hardware + Software
Power Restoration System Restart Automatically after Power Recovery
HDD Devices Internal x4
HDD Max. Capacity 8 TB x4
Disk Management Create, Format and Remove Disk
RAID 0, 1, 5 (RAID Max. Volume: 16TB)
Video & Audio
Video Output HDMI x1, VGA x1
Resolution 3840x2160, 1920x1080, 1280x720
Graphics Decoder Hardware decoding
Decoding Capacity H.265/H.264:
3840x2160 @ 120 fps (4-CH)
1920x1080 @ 480 fps (16-CH)
3840x2160 @ 120 fps (4-CH)
1920x1080 @ 480 fps (16-CH)
1280x720 @ 960 fps (32-CH)
Camera Position Change the viewcell position on the Live View screens
External Interface
USB Interface Front: 2 (USB 2.0)
Back: 1 (USB 3.0)
Alarm In 8
Alarm Out 4
Audio 3.5 Phone Jack Audio Output x1
3.5 Phone Jack Audio Input (Reserved) x1
External HDD USB 3.0 Port x1
RS485 1 Port (Reserved)
Network Interface 10/100/1000Mbps Ethernet (RJ-45) x2
Power Input DC 56V 2.32A
Power Consumption Max. 120 W
LED Indicator
LED Indicator Status, Record, HDD1, HDD2, HDD3, HDD4, Net1, Net2
Form Factor Desktop
Operation Buttons Power/Reset (Back)
Dimensions 430 (W) x 400 (D) x 44.5 (H) mm
Weight 3.87 kg (without HDD)
Operating Temperature 0°C ~ 40°C (32°F ~ 104°F)
Humidity 0 ~ 95%
Safety Certifications CE, LVD, FCC, VCCI, C-Tick, UL
Warranty 24 months
Client PC Requirements
Operating System Microsoft Windows OS: XP/Vista/7/8/10/2008/2012
CPU Intel Celeron or above
Memory 2 GB or above
Ethenet 10/100Mbps
Display Resolution 1024x768 pixels or above
Web Browser Internet Explorer 10 (32 bit) or above
Software AP Installation Wizard 2, Shepherd, VAST ,VAST 2
Mobile/Tablet App VIVOCloud (iOS/Android), iViewer (iOS/Android)
CD User's Manual, Quick Installation Guide (QIG), Installation Wizard 2
Others Power Adapter, Power Cord, Quick Installation Guide, 32 x H.D.D. Screws, 8 x H.D.D. Brackets, 1 x USB Mouse, 4 x SATA Cables

Software Information

Model ND9441 ND9541
Product Description 16-CH H.265 Embedded NVR 32-CH H.265 Embedded NVR
Software Information
Maximum Channel 16 32
Record Throughput (MB) 192 Mbps
Network Throughput (MB) 96 Mbps
Audio Format G.711, G.726
Video Format H.265, H.264, MJPEG
Video Resolution VGA, 1MP, 2MP, 3MP, 5MP & 12MP Camera
Recording Time (sec.) Pre-Record: 5 (Max. 10)
Post-Record: 20 (Max. 300)
Recording Stream Single
Recording Mode Continuous, Schedule, Manual, Event, Activity Adaptive Streaming
Recording Setting Recycle (unit: Day)
Recording Path Local Path
Record Video Format 3GP
Watermark Supported
LiveView (Local Display)
Stream Application Constant/Auto Adaptive Stream
LiveView Display 16 Channels
Multiple Layout Display:
1x1, 2x2, 3x3, 1P+3, 2P+3, 1M+5, 1P+6, 3V,1M+12, 4x4
32 Channels
Multiple Layout Display:
1x1, 2x2, 3x3, 1P+3, 2P+3, 1M+5, 1P+6, 3V, 1M+12, 4x4, 1M+31
Monitor Enhancement OSD Display (NVR), OSD Display (Camera), Camera Information, Remote I/O Control, Event Notification, Aspect Ratio, Fisheye Dewarp
(1O,1P,1R,1O3R, 1O8R)
PTZ Control Panel Control/Joystick
PTZ Operation Direction Control, Home, Iris, Preset, Patrol (Group), PiP Control
Playback (Local Display)
Playback Display 4 Channels
Multiple Layout Display: 1x1, 2x2, 1P+3, 1V+3
Playback Control Regular (Play, Pause, Stop), Rewind, Next / Previous Frame, Speed Control, Calendar, Event, Timeline, Timeline Scale, Thumbnail (Storyboard)
Video Search By Calendar, Date/Time, Alarm
Thumbnail Explorer (Storyboard) Listing the thumbnail of recorded video (Max. 2 CH)
Monitor Enhancement OSD Display (Camera), Event Notification, Aspect Ratio, PiP Control, Fisheye Dewarp (1O, 1P, 1R, 1O3R, 1O8R)
Snapshot JPEG
Video Clip Export EXE
LiveView (Remote)
Stream Application Stream Selection
Audio Capability One Way
LiveView Display 16 Channels
Multi Layout display: 1x1, 2x2, 3x3, 1V+3, 1M+5, 1M+12, 4x4
32 Channels
Multi Layout display: 1x1, 2x2, 3x3, 1V+3, 1M+5, 1M+12, 4x4, 1M+31
Monitor Enhancement OSD Display (NVR), Drag & Drop, Image Freeze, Audio Control, Remote I/O Control, Event Notification, Bookmark, Fisheye Dewarp (1O, 1P, 1R)
PTZ Control Panel Control
PTZ Operation Direction Control, Home, Zoom, Focus, Iris, Preset, Patrol (Group), PiP Control
Snapshot JPEG
Playback (Remote)
Playback Display 4 Channels
Multi Layout Display: 1x1, 2x2, 1V+3
Playback Control Regular (Play, Pause, Stop), Next Frame, Speed Control, Calendar, Timeline, Timeline Scale, Bookmark
Monitor Enhancement OSD Display (NVR), Drag & Drop, Audio Control, PiP Control, Fisheye Dewarp (1O, 1P, 1R)
Snapshot JPEG
Video Clip Export EXE
Alarm Management
Schedule Type Continuous, Schedule, Manual
Event Motion Detection, PIR Detection, Tampering Detection, Digital Input (Camera), Digital Output (Camera), Connection Abnormal, Storage Abnormal, Storage Full, Camera Network Loss, DI, DO, Network Disconnected
Action Record, Email (Text), Email (Snapshot), FTP, Buzzer, ePTZ Control (Go to Preset), NVR DO, Camera DO, VIVOCloud APP Notification
Recording Time (sec.) Pre-Record: 5 (Max. 10), Post-Record: 20 (Max. 300)
Manual USB Dongle (FAT Format)
Remote Schedule backup to FTP
User Management User Account: 16
User Account Time Limit: 10 mins
User Level: Administrator / Regular User
User Feature Definition: By Camera
Log System, Recording, User, Error
Date&Time Time Zone, Manual, Automatic Sync NTP, Daylight Saving Time
Firmware Manual update
Restore Default Supported
Backup/Restore (Configuration) Supported
Language Czech, English, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Simplified Chinese, Traditional Chinese
Camera Intergration
Insert Camera Manual, Search
Video (Media) Setting Compression, Resolution, FPS, Video Quality
Image Setting Image Display
Image Adjustment
PTZ Control Panel Control, Joystick
PTZ Operation Direction Control, Home, Preset, Patrol (Group)
Motion Detection Supported
ONVIF Core Spec Version 2.2 or above (By Project)
ONVIF Stream Video (H.264, MJPEG)
ONVIF Recording Continuous, Schedule, Manual
ONVIF Discover Discover the other brand camera through "Insert Camera & Batch Insert"
Device Intergration
UPS APC Model Compatible
Joystick IPD-USB, AJ001

ND9541 Webinar

One Button Setup

Fisheye Dewarp Function


Storyboard Event Search

Dual LAN Application

VAST CMS Integration

4-Channel Playback


Tutorial 01 Fisheye Dewarp

Tutorial 02 Display Layout and Camera Position

Tutorial 03 Live Rotation Start/Stop

Tutorial 04 Tool Bar and Timestamp

Tutorial 05 Camera Name and Fit Screen Setting

Tutorial 06 Digital Zoom

Tutorial 07 Enable/Disable NVR and IP camera Digital Output

Tutorial 08 Manual Alarm Buzzer Disable and Video Playback

Tutorial 09 PTZ Control


Tutorial 10 Reboot, Scheduled Reboot and NVR Shut Down

Tutorial 11 Quick Setup and VIVOCloud

Tutorial 12 Add/Delete Camera

Tutorial 13 IP Camera - Recording Settings

Tutorial 14 IP Camera - Motion Detection Settings

Tutorial 15 PTZ Camera Settings

Tutorial 16 VIVOCloud Settings

Tutorial 17 E-mail Settings

Tutorial 18 Add/Delete Users

Tutorial 19 Storage Settings - Add/Remove

Tutorial 20 Network/DDNS and Service Settings


Tutorial 21 Storyboard

Tutorial 22 Event/Alarm Search

Tutorial 23 Log Search


Tutorial 24 Playback

Tutorial 25 Fisheye Dewarp Playback


Tutorial 26 Snapshot Video Clip Export and Manual Export


Tutorial POS Integration (Project Support Function)


Tutorial 27 System Maintenance


* Push notification function requires that NVR firmware v. works with VIVOCloud App v.2.1.X




Device Pack




Quick Guides


User's Manual


Declaration of Conformity

Supported Model List

Device Pack

Supported HDD List

Brand Family Model Capacity
Seagate Surveillance HDD ST1000VX005 1TB
Surveillance HDD ST2000VX008 2TB
Surveillance HDD ST4000VX007 4TB
Surveillance HDD ST6000VX0023 6TB
Surveillance HDD ST8000VX0022 8TB
SV35 ST3000VX010 3TB
Toshiba DT01ACA DT01ACA300 3TB
Sonance MD03ACA400V 4TB
Western Digital * WD Purple WD20PURZ 2TB
WD Purple WD30PURZ 3TB
WD Purple WD40PURZ 4TB
WD Purple WD60PURZ 6TB
WD Purple WD80PURZ 8TB

* WD (Western Digital) is one of VIVOTEK's SIA (Solution Integration Alliance) partners for developing customized features on an open platform. WD provides well maintain and repair service as VIVOTEK always do. For further direct service of WD HDD product, please refer to WD Global Warranty website.

Suggested PoE Switch List

Model   Description
AW-FGT-260A-250   Unmanaged 24xFE PoE + 2xCombo GE Switch
AW-FGT-180A-250   Unmanaged 16xFE PoE + 2xCombo GE Switch
AW-GEV-267A-370   VivoCam L2+ Managed PoE Switch, 24xGE PoE + 2xGE Combo + 1xRJ45 Console


Mounting Kit



Rack Mount Rails for NVR

Mounting Kit ND9541

Product Front View

ND9541 - Front View

Product Rear View

ND9541 - Rear View

Interface Connections

  • Connect to a monitor using an HDMI cable. VGA is also supported.
  • Connect CAT5e or better-quality Ethernet cable to the Gb/E Ethernet ports. IP cameras are connected via an Ethernet switch or PoE switches.
  • Connect USB devices such as, mouse, keyboard, USB optical drive, or USB thumb drive (for¬matted in FAT format), or UPS.
  • Connect external devices, such as sensors, relays, or alarms to the terminal block.
  • Connect the power adaptor to the power mains and the system.

ND9541 - 16-Channel Connections ND9541 - 16-Channel Connections