Kontron K3931-N Intel Core i3-N305 Processors Mini-ITX SBC

  • Product Name: Kontron K3931-N
  • Motherboard Form Factor: Mini-ITX (mITX)
  • CPU: Intel Core-i3 or Intel Processor N-Series (Alder Lake N)
  • RAM: DDR5
  • Expansion: PCIe slot, two M.2 connectors
  • Other features: Designed for fanless operation, supports up to three 4K displays, four COM ports, ccTalk port.

Description

The Kontron K3931-N mITX is an industrial motherboard designed for fanless operation, supporting the Intel® Core-i3 and Intel® Processor Alder Lake N series. It features the latest UHD Gen12 graphics based on Intel® Xe architecture, capable of driving up to three independent displays with up to 4K resolution via three DisplayPorts, an embedded DisplayPort, and Dual-Channel LVDS. The board is equipped with extension slots for PCIe and two M.2 connectors, along with a rich set of I/O including 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 of up to 60°C, the K3931-N mITX is perfectly suited for the special requirements of various industrial markets.

Key Features

  • Latest DDR5 memory technology for best-in-class system performance
  • Intel® UHD Gen12 Graphics driven by Xe® architecture
  • Extensive display support: up to 3x DisplayPort V1.4, Dual Channel LVDS, and eDP V1.4b (4K)
  • Designed for fanless, 24/7 continuous operation
  • Enhanced temperature range up to 60°C
  • Rich connectivity with PCIe, dual M.2, four COM ports, and USB 3.2 Gen2
  • Specialized ccTalk port for payment systems

Specification

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)

BIOS

AMI Aptio 5.x (UEFI) BIOS

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

Kontron SMARTCASE Family

Alongside our Kontron industrial motherboard portfolio, we offer the compact and stylish SMARTCASE™ chassis range. Designed for demanding environments such as industrial and digital signage applications, SMARTCASE™ solutions are CE and FCC Class B certified for EMC compliance. This modular IPC chassis family is compact, flexible, and thermally approved for operation up to 45°C, supporting both horizontal and vertical installation.

Key features include:

  • Compact, modular, and flexible IPC chassis design
  • CE and FCC Class B EMC compliance
  • Operating temperature support up to 45°C
  • Integrated 2.5” HDD/SSD bay with cooling
  • Expansion options including graphics cards and Bluetooth/Wi-Fi

Typical applications:

  • Digital Signage
  • Gambling
  • Vending, POS, ATM, kiosks, and ticketing systems
  • Industrial automation

👉 This is a selection of Kontron SMARTCASE’s. To find the right SMARTCASE™ solution for your application, speak to our sales team for expert advice and configuration options. If an off-the-shelf chassis does not fully meet your requirements, BVM can also design and develop a custom enclosure tailored to your application, environment, and performance needs.

smartcase s720 smartcase s730 smartcase s501 smartcase s502 smartcase s511
SMARTCASE™ S720: Mini-ITX chassis SMARTCASE™ S730: Mini-ITX chassis SMARTCASE™ S501: Mini-STX chassis SMARTCASE™ S502: Mini-STX chassis SMARTCASE™ S511: Mini-STX chassis

 

BVM Customisation Service

Design | Develop | Test | Manufacture

If you cant find an off the shelf product that meets your specific requirements speak with our in house design team who can customize an existing product or design a new product from start to finish. With extensive industrial and embedded computing experience, we deliver reliable, high-performance solutions tailored to your requirements.

 

Here’s a selection of our design, manufacturing & associated services: –

Design to Order Banner

Design to Order: OEM/ODM Embedded Product Design Services

For customers designing a new product or working with an existing prototype.

Build to Order Banner

Build to Order: Computer Design and Customisation Services​

Take an existing system and we can:

Build to Order: Racks and Towers, Peli Case PCs and Mini-ITX PCs

Embedded Software Banner

Embedded Software: Configuration, Integration and Deployment

Porting, Integration & Deployment

 

ALL OUR DESIGN AND MANUFACTURING SERVICES INCLUDE:

Testing

Testing

Lifecycle

Materials Management

Logistics

Logistics and Tracking

Manufacturing

External Manufacturing

• Burn in Test
• Temp / Thermal Testing
• Environmental Testing
• Safety Testing
• Software Compatibility Test
• Vendor Selection and Component Procurement
• Product Traceability
• Obsolescence, End of Life and Last Time Procurement Management
• Simple to use on-line RMA System
• Traceability of Shipments
• Product Labelling
• OEM/Branded Packaging
• System Branding
• Custom Labels
• Surface Mount: – High Speed Placement
• Conventional Through Hole Insertion & Assembly
• Automated Optical Inspection
• Bespoke PCB Test

 

Click here to find out more.