Embedded recorders

WJ-NX400 i-PRO

Network Recorder

H.265/H.264 Embedded recorder

  • Secure & High Compression Recording
  • PC-less non-VMS surveillance solution
  • Scalable storage
  • High reliability and high efficiency data reading/writing
  • Onvif Profile S

• H.265, H.264, and JPEG multi format
• Robust embedded IP security enabling a secure end-to-end PC-less surveillance solution
• Support full data encryption streaming recording for all i-Pro Extreme cameras which comply to FIPS 140-2 Level 1 standards

Secure high bandwidth recording
- 64 ch. expandable to 128 ch. camera input. Support H.265 / H.264 mixed recordings.
- 640 Mbps total through put (including 384 Mbps recording bandwidth)
- DigiCert (formerly Symantec) device certificates pre-installed

PC-less non VMS surveillance solution
- No camera license fees, no annual license updates required
- Built-in GUI and Dual HDMI (4K/FHD) outputs
- Automatic camera coniguration
- Sub-stream recording for mobile access and low bandwidth system environments

Scalable storage
- (9) integrated drive-bays RAID 5/6
- External storage expansion up to 324 TB

High reliability and redundancy
- Dynamic HDD power management increases HDD life
- Redundant fail-over using 2 nd recorder to enable seamless mission-critical recording *
- NVR backup important data to NAS devices *
- TURBO-RAID for quick RAID recovery without sacrificing recording bandwidth and performance
* KMS registration is necessary for activation

Supported Camera

Compatible Vendor i-PRO series Network cameras, ONVIF NVT conformant camera and encoder
Supported Image Format H.265(HEVC), H.264, JPEG
Supported Image Resolution ・Aspect ratio [4 : 3]
4,000x3,000, 2,560x1,920, 2,048x1,536, 1,280x960, 800x600, 640x480
・Aspect ratio [16 : 9]
3,840x2,160, 2,560x1,440, 1,920x1,080, 1,280x720, 640x360
・Aspect ratio [1 : 1]
2,992x2,992, 2,816x2,816, 2,048x2,048, 1,280x1,280
・Aspect ratio [9 : 16]
1080x1920, 720x1280, 360x640
Supported Audio Format G.711 for Onvif, G.726 (ADPCM) 32 kbps
Maximum Number of Cameras MAX. 128 (Default number of cameras : 64)


Recording Mode Event, Schedule, Emergency
Pre-Alarm Recording Up to 15 seconds *When the delivery speed from the network camera is less than 3 Mbps.
Sub-Stream Recording 768 kbps (fixed data size)
Scheduled Recording Mode 16 programs, 3 time zones/day, Independent setup for each day of the week
Frame Rate/Camera Up to 60 ips (Depending on the camera)

Main Unit Functions

Camera Control Pan/Tilt, Zoom, Focus, Brightness, Preset position call and program (up to 256),
Auto mode, Click centering, Wheel zoom, Zoom reset, Auto Back Focus,
Aux, Wiper (for WV-SUD638)
Multiscreen Mode [Main monitor]
・Control screen 4 / 9 / 16 split screen display
・Wide view screen 3 / 4 / 6 / 9 / 12 / 16 / 24 / 32 / 64 split screen display,
1 screen sequence, 4 / 9 / 16 split screen sequence
[Sub monitor]
9 / 16 / 32 split screen display,
1 screen sequence, 4 / 9 / 16 split screen sequence
Playback Control Play, Rev Play, Pause, FF, FR, Prev Record, Next Record, Prev Image, Next Image
Search Mode Search criteria : Time date, Playback by designating a timeline, VMD, Thumbnail
Copy Recorded data of selected cameras and time date range can be copied to the USB storage.
Camera Title Up to 16 Characters
Clock Display Time : 12H/24H, Date : 5 formats
Digital Zoom Live/Play : 2x, 4x (only for 1-screen)
System Log Operator access (500), Network error (100), Error (1,000), Event (1000), Operation (500)
360 Camera Dewarp Only 1ch display mode
Re-Encoding 2Client *Only when 64 ch mode
Image Download Recorded data of selected camera and time range can be downloaded to a PC.
Viewer software can be downloaded separately.
SD Memory Data Download Images recorded in the SD card in the i-PRO series cameras can be
transferred to the recorder automatically. (H.265/H.264)
GUI Language Setup page in English, French, Italian, Spanish, German, Russian,
Portuguese, Thai, Simplified Chinese, Japanese
Required PC CPU : IntelR Core. i7-860 or faster , RAM : 4 GB or more,
VRAM : 128 MB or more (Min. 64 MB), MicrosoftR DirectXR 9.0c or later
User Registration Up to 32 users
User Level 3 Levels (Programmable)
Partitioning User level - Camera (View & Control, No Access)
Security Method User authentication (ID and Password), Host authentication,
Alteration detection, SSL/TLS


Alarm Source 32x Terminal inputs, 128x Camera alarms (i-PRO Alarm Protocol),
128x Command alarms
Event Mode Off / On
Alarm Action Alarm recording, e-mail notification, Alarm message, Camera positioning,
Terminal output, i-PRO alarm protocol output, Buzzer, Indicator
Event Log 1000


Spot Output Connector 1x 1 V [p-p] / 75 Ω (BNC) NTSC /PAL (selectable in setup menu)
Monitor (HDMI) Connector [Main monitor]
HDMI 4K UHD(3840x2160p)/30Hz, 4K UHD(3840x2160p)/25Hz,
1920x1080p /60Hz, 1920x1080p /50Hz, 1920x1080i /60Hz,
1920x1080i /50Hz, 720x576p /50Hz, 720x480p /60Hz
[Sub monitor]
HDMI 1920x1080p /60Hz, 1920x1080p /50Hz, 1920x1080i /60Hz,
1920x1080i /50Hz, 720x576p /50Hz, 720x480p /60Hz
Audio Output Connector -10 dBv, 600 Ω, unbalanced x1 (RCA pin jack)
Alarm IO Alarm input 1 - 32, Alarm output, Alarm reset input 1 – 4
Control IO Time adjustment input, 2x +5 V output
Error/Warning IO Network error output, HDD error output, Camera error output,
Recorder error output, Recording error output,
Emergency recording input, Outage detection input,
External recording mode switching input, Outage processing end output
Mouse Connection Port 2 (Front 1, Rear 1)
Camera/PC Network Port 2x 10BASE-T / 100BASE-TX / 1000BASE-T (RJ45)
Maintenance Network Port 1x 10BASE-T / 100BASE-TX (RJ45)
USB Storage USB 3.0 / USB 2.0 memory, USB 3.0 / USB 2.0 connected HDD (except bus powered device)
External Storage 5x WJ-HXE400


Maximum Recording Rate 384 Mbps or less
Maximum Band Width Total 640 Mbps or less
IPv6 : ICMPv6
E-mail Upon Alarm or Warning
No. of Simultaneous Users 16 or less

Other Functions

Time Synchronization Terminal (Slave), NTP (Server/Client)
Summer Time User definable (using menu setup)
Remote Monitoring on Smartphone/Tablet 2Client


HDD 8.89 cm (3.5 inch) Serial ATA HDD, Up to 9x HDDs can be installed.
Maximum Capacity 54 HDD slots (with 5x WJ-HXE400 Extension Units, 9x HDDs installed in each unit)
Up to 6 TB will be supported.
RAID (Hardware RAID) Single, RAID1, 5, 6

Viewer Software

Additional Functions Alteration detection, Save as JPEG, Two times zoom, Print, Copy
Supported OS, Language Language of the software will be English or Japanese


Safety/EMC Standard WJ-NX400K : UL (UL60065), FCC (Part15 ClassA),
C-UL (CAN/CSA C22.2 No.60065),DOC (ICES003 ClassA)
WJ-NX400K/G : CE (EN60065, EN55032 ClassB, EN55024), EAC
Power Source WJ-NX400K : 120 V AC 60 Hz / WJ-NX400K/G : 220 V - 240 V AC 50 Hz/60 Hz
Power Consumption approx. 125 W (with 6 TB HDD x9)
Ambient Operating Temperature Main body : +5 °C to +45 °C (41 °F to 113 °F)
Mouse (provided) : +5 °C to +40 °C (41 °F to 104 °F)
Ambient Operating Humidity 5 % to 90 % (without condensation)
Maximum Operating Altitude 2,000 m (6,562 feet) above sea level
Dimensions 430 mm (W) x 132 mm (H) x 400 mm (D)
{16-15/16 inches (W) x 5-3/16 inches (H) x 5-12/16 inches (D)}
Mass (Approx.) When no HDD is installed : 11.5 kg {25.4 lbs} / When 9 HDDs aer installed : 20 kg {44.1 lbs}


Data Sheet

WJ-NX400 Spec Sheet (Global)

WJ-NX400 Spec Sheet (Global)

No.2A-183HA, A4 Size

WJ-NX400 Spec Sheet (US)

WJ-NX400 Spec Sheet (US)

No.2A-183HL, Letter Size

A&E Spec Sheet


Installation Guide

User Manual/Operating Instruction

Addendum for Operating Instructions (English)

Addendum for Operating Instructions (English)

Time-date Range on ND, NV and NX-series Recorders



WJ-NX400 Firmware

WJ-NX400 Firmware

Version 5.40
Important information:
- When you upgrade the firmware, once power off and on of WJ-NX400 before upgrading.
-  Download service for firmware version 2.00, 2.10, 2.11 and 4.30 is unavailable. We apologize for the inconvenience this may cause.

WJ-NX400 Firmware (Chinese)

WJ-NX400 Firmware (Chinese)

Version 5.40
Important information:
- When you upgrade firmware, once power off and on of WJ-NX400 before upgrading.
- Download service for firmware version 2.00, 2.10, 2.11 and 4.30 is unavailable. We apologize for the inconvenience this may cause.

Release Note

WJ-NX400 Version history

WJ-NX400 Version history

Product: WJ-NX400


Calculators (integrated)

Calculators (integrated)

  • i-PRO Active Guard Calculator (for Video Insight/Genetec/Milestone/ASM300)
  • Security Recorder Calculator for WJ-NX510/NX410/NX310 series
  • Security Recorder Calculator for WJ-NX400/NX300/NX200/NX100 series
  • Security Recorder Calculator for WJ-NU101/NU201/NU300/NU301 series
  • Network Disk Recorder (WJ-NX400K) Calculator for VBR and CBR
  • PoE budget calculator for Network Disk Recorder WJ-NU series
  • PoE budget calculator for PoE Ethernet switch (Added on Feb 28, 2024)


Image Data

WJ-NX400 Product All Images ZIP

WJ-NX400 Product All Images ZIP

TURBO-RAID System Network Recorder - WJ-NX400
WJ-NX400 Product Image B L

WJ-NX400 Product Image B L

TURBO-RAID System Network Recorder - WJ-NX400
WJ-NX400 Product Image D L

WJ-NX400 Product Image D L

TURBO-RAID System Network Recorder - WJ-NX400

CAD Data


Certificate of Compliance