K3931-N mITX New

Industrial Motherboard supporting the Intel® Core™ i3 processors & Intel® processors N series
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  • Latest DDR5 memory technology for best-in-class system performance
  • Intel UHD Gen12 Graphics - driven by Xe® architecture (within SoC)
  • Up to 3x DisplayPort V1.4
  • Dual Channel LVDS (24 Bit) and eDP V1.4b (4 K) onboard
  • Designed for fanless operation
Download Datasheet

The Industrial Motherboard K3931-N mITX supports the Intel® Core-i3 and Intel® Processor Alder Lake N series with latest UHD Gen12 graphics based on Intel® Xe architecture. It is equipped with three DisplayPorts, one embedded DisplayPort and one Dual-Channel LVDS (24bit) and powers up to three independent displays with up to 3x 4K resolution. It is also equipped with extension slots for PCIe and two M.2 connectors and offers many other functions like GPIO, four COM ports, one ccTalk port and USB 3.2 Gen2. Designed and approved for 24/7 continuous operation and an enhanced temperature range up to 60° C the K3931-N mITX fits perfectly with special requirements of certain markets. 


Benefits of Kontron motherboards:

  • Highest quality through German engineering and production
  • Strict lifecycle management and reliable product maintenance
  • Comprehensive feature and tool set
  • Excellent technical support
  • Beneficial total-cost-of-ownership


Processor Intel® Core® i3 Processors & Intel® Processors N-series
Chipset N1: Intel® Processor N50 (2C/6W) SoC
N2: Intel® Processor N97 (4C/12W) SoC
N4: Intel® Processor N200 (4C/6W) SoC
N6: Intel® Core® i3 N305 (8C/15W) SoC
Main Memory 1x DDR5-4800 SODIMM Sockets up to 32 GByte, non-ECC
Graphics Controller Intel UHD Graphics driven by Intel® Xe with up to 32 execution units (EUs)
Display Up to 3x DPP V1.4a (up to 4K resolution1)
1x Embedded DP (eDP V1.4b up to 4K resolution)
1x Dual-Channel 24bit LVDS

Following max. display combinations are supported:
3x DPP / 2x DPP + LVDS or eDP / 1x DPP + eDP + LVDS
Audio Controller Realtek ALC256
Audio Stereo, High Definition Audio Codec
Ethernet Realtek RTL8111H with 10/100/1000 MBit/s, Teaming support
Intel® i226LM with 10/100/1000/2500 MBit/s, TSN Support
USB 3x USB 2.0 (by header), 1x USB 2.0 stick socket
2x USB 3.2 Gen1 (Rear), 2x USB 3.2 Gen1 (by header)
2x USB 3.2 Gen2 (Rear), 1x USB3.2 Gen2 Key A (header) for USB3 Type-C option
Serial 1x RS232/422/485; 3x RS232, 1x ccTalk
(2x RearIO, 3x by header)
Available I/Os 8 Bit GPIO (by header); WLAN LED support, WLAN enable/disable support
SATA 1x Serial ATA III 600 Interface (up to 6GBit/s), NCQ, AHCI
Expansion 1x M.2 PCIe 2230/2242/2280 (Key-M ,PCIe x2 Gen3/NVMe SSD modules)
1x M.2 PCIe 2242/2280 (Key-B, PCIe x1 Gen3/USB/SATA SSD modules)
1x M.2 PCIe 2230 (Key-E, WLAN CNVi only/Bluetooth USB modules)
1x PCIe x4 (1 lane, Gen3, open slot)
Power connector External/Internal DC-In 8-34V (DC Jack/4-Pin Mini-Fit)
Input Voltage DC Input 8 V - 34 V (max. 10 A /max. 125 W)
Watchdog BIOS POST-/BIOS BOOT-/OS-HW Watchdog
Real Time Clock integrated
Cooling 2x PWM fan (CPU/System)
Operating System Windows 10, Windows 11, Windows 10 IoT, Linux-64
Mechanical Dimensions Mini-ITX: 6.7“ x 6.7“ (170 x 170 mm)
Operating Temperature 0°C-60°C
Humidity 5%-85%
Certifications cTÜVus acc. IEC62368-1, CE Class B incl. Industrial Immunity, UKCA, FCC-B verified


Driver Updates

BIOS Updates


Datasheet K3931-N mITX
[ k3931-n-mitx_datasheet.pdf, 1.42 MB, Nov.09.2023 ]


General Safety Instruction
[ general-safety-instructions.pdf, 560.72 KB, Jan.04.2021 ]

Tech Spec Sheet

Motherboard and SMARTCASE™ Tech Specs
[ productoverview_motherboards.pdf, 6.05 MB, Apr.15.2024 ]


Kontron Services Brochure
[ kontron-services-brochure.pdf, 8.9 MB, Dec.17.2020 ]


AC Adapter
AC Adapter 19V / 3.42A, 65W - w/o power cord  
AC Adapter 20 V/120 W
AC Adapter 20 V/120 W Delta ADP-120 VH D  
Internal PSU for chassis Kit
Internal PSU for chassis Kit AC Adapter, 12V / 5.4A, 65W, low profile extension card format  
DrivePowerCable Drive Power Cable for SATA HDD and SATA slimline DVD (length 200 + 200 mm)  
COM Cable "long"
COM Cable \ with fullsize slot bracket  
Risercard 1 x PCIe x4  
DP 20P M to HDMI Adapter
DP 20P M to HDMI Adapter DP 20P M to HDMI Adapter, up to 4k @ 60 Hz  
Slim Active Heatsink mSTX/mITX ADL-N 15W
Slim Active Heatsink mSTX/mITX ADL-N 15W Slim Active Heatsink mSTX/mITX ADL-N 15W  
Passive Cooler mITX ADL-N 15W
Passive Cooler mITX ADL-N 15W Passive Cooler mITX ADL-N 15W  


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