UR3 SRX-Pro NVR Server


  • Up to 32 video channels (IP or analog)
  • Up to 28TB internal storage (up to 2 HDD, 14TB each)
  • Dual 10/100/1000 Gigabit network
  • CMS Health Monitoring
  • VGA, DVI-D, DisplayPort ports for local live viewing
  • Embedded Windows 10 IoT OS on SSD drive for stability
  • Key lock access front panel
  • Optional TCP/IP 4 sensors inputs, 4 outputs (via UIO8)


UR3 is i3's compact and affordable NVR solution, supporting up to 32 channels of video recording.

The UR wall-mount chassis boasts exceptional durability and versatility. Two large industrial chassis fans ensure proper air circulation preventing the unit from overheating. The UR3 NVR Server features wall-mount/desktop chassis designed for installations with limited space. Windows 10 IoT operating system comes on a Solid State Drive for added stability and fast boot-up times. Running on Intel i3 CPU, the UR3 powers all its components with a 400W power supply.

The 2 NICs allow you to keep your IP cameras on a separate network via a Gigabit switch, such as i3's S244 or S81, while accessing the Internet through the second NIC without impeding your network. For video backup use the slim DVD recorder or the USB (on the front panel) for easy-to-use external USB storage.

UR3 supports up to two (2) storage 3.5" SATA hard drives, up to 14TB each, for a total of up to 28TB of video storage. For even longer video retention or recording capacity, i3's iS416 external hard drive device can be purchased.


Hardware Configuration
Chassis Type UR Series Desktop/Wall-mount, 4.5U
Physical dimensions (WxDxH inches/mm) 18 x 13 x 7¾ inches / 456 x 330 x 197mm
Min. Weight (lbs/kg) 22lbs / 10kg
Motherboard Type DFI
CPU Intel - i3
On-board Graphic Card VGA (1), DVI-D (1), DisplayPort (1)
On-board Audio Card Line Out/Mic
Connectivity (LAN/WAN) (without HR16) 2 X 1GB/sec
Operating System Windows 10 IoT
Operating System Drive Solid State Drive OS
Keyboard & Mouse Yes
Number of Control Outputs / Sensor Inputs NA (upgradable to 64 / 64 using 16 x UIO8)
Analog Video Support Yes, via HR16
Built-in PoE No
Power Consumption 150W
Power Supply 400W
Power Input 100-240 VAC, 50-60 Hz, (auto switch)
Operating Temperature 20℃ - 25℃ / 68℉ - 77℉
Relative Humidity < 80%, non-condensing
Video Configuration
IP Camera Inputs (max) 1 ~ 48 (Max. No. of channels = 48)
Analog Camera Inputs (max) via HR16 1 ~ 48 (Max. No. of channels = 48)
Highest Model Number (w/o analog support) G30048
Highest Model Number (w/ analog support) G34800
Compression Types Selectable h.265 / h.264 / MPEG4 / MJPEG
Main Monitor Output VGA / DVI-D / DisplayPort
Screen Display 1, 4, 9, 10, 13, 16, 25, 36, 64 (selectable)
Backup Formats i3 Encrypted, MP4, AVI, BMP, or JPEG
Third Party IP Camera Support www.i3international.com/partners
360° Fisheye IP Inputs (Max) ≤number of purchased IP licenses
Video Storage Configuration
Maximum Number of HDD 2 (i3-approved WD models only)
Number of HDDs included N/A (use i3-approved WD models only)
Maximum Hard Drive Capacity, unformatted 28TB (i3-approved WD models only)
Software Configuration
Remote Viewing Video Pilot Client, SRX-Pro Mobile, CMS Video Streaming
Pre-alarm/Post-alarm Recording Yes
Recording Modes Time/Date - with time zone ref., sensor, motion detection, continuous
Max. number of PACDM® channels. Serial / TCP/IP 8 Serial / 16 TCP/IP (Optional)
Max. number of i3Ai/VA channels (i3Ai, VA. iSearch, Heatmap) N/A (not supported)
Max. number of dDisplay channels 2 (Optional)
Max. number of Remote connections 50
CMS Health Monitoring Optional
Warranty / Certifications
Certifications UL / ULc / FCC / CE
Warranty 3-year parts, 1 year labor