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K3931-N mITX

Technical Information

STORAGE & EXPANSION

SATA

PCIe/M.2 SLOTS

1x Serial ATA III 600 Interface (up to 6GBit/s), NCQ, AHCI,

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

INPUT VOLTAGE

External/Internal DC-In (DC Jack/4-Pin Mini-Fit)

DC Input 8 V - 34 V (max. 10 A/max. 130 W)

FIRMWARE

BIOS

WATCHDOG

REAL TIME CLOCK

TPM

AMI Aptio 5.x (UEFI) BIOS

modified and adapted by Kontron; Recovery BIOS, SM-BIOS (DMI), BIOS and

CPU Microcode Update, Quick Boot, Logo Boot, Quiet Boot, Plug & Play,

Automatic DRAM and PCIe Configuration, BIOS Support for S.M.A.R.T.,

Advanced Power Management, ACPI S3/S4, Wake on time from S5.

No legacy OS support, no MBR installation (UEFI only)

BIOS POST-/BIOS BOOT-/OS-HW Watchdog

Integrated

TPM V2.0 (Intel® integrated)

SYSTEM CONTROL

FP HEADER

SECURITY

1x Header for Reset button, HDD LED, Power button, Power LED

Recovery BIOS, System and BIOS Password, Boot Sequence Control,

Serial-/USB-Port Access Protection, Write Protection for Flash BIOS,

EraseDisk (BIOS Feature), Intel integrated TPM V2.0

COOLING

FAN

2x PWM fan (CPU/System)

SOFTWARE

OS SUPPORT

MS Windows 10, MS Windows 11, MS Windows 10 IoT, Linux-64

No legacy OS support, no MBR installation (UEFI only)

MECHANICAL

DIMENSION (L x W)

Mini-ITX: 6.7“ x 6.7“ (170 x 170 mm)

ENVIRONMENTAL

OPERATION TEMPERATURE

0 °C - 60 °C

CERTIFICATION

EMC

SAFETY

CE Class B, Industrial Immunity (EN 61000-6-2), FCC-B/ICES-003 verified, UKCA

cTÜVus acc. IEC62368-1

Power Supply Requirements

Motherboard Versions

SOURCE

VOLTAGE RANGE

MIN. PS LOAD

MAX. VOLTAGE

TOLERANCE

TYP. MOTHERBOARD

INPUT POWER1

MAX. MOTHERBOARD

INPUT POWER2

DC-IN

(wide range)

8 V - 34 V

(recommended nominal

range)

7.6 V - 36 V

(absolute maximum ratings)

0 A

± 5 %

<10 W / 25 W

130 W

1) Motherboard incl. Memory and M.2 NVME SSD (approximations for MS Windows 10 Idle Mode / Full Processor Load @ 15 W TDP

2) Motherboard incl. Memory, M.2, PCIe/M.2 PCIe devices, USB

See TechNotes document for detailed power requirements

PROCESSOR (SoC)

GRAPHICS

Intel® UHD Gen12 Gfx

MEMORY

K3931-N6

Intel® Core™ i3 N305

Octa-Core @ 15 W TDP (Flex cTDP option**)

TDP 15 W: 1.8/3.8/3 GHz*

TDP 9 W: 1.0/3.8/3 GHz*

GPU @ 1/1.25 GHz

32x EU

Up to 3 displays (2x 4K + 1x FHD)

DDR5-4800

One socket

Max. 32 Gbyte

K3931-N4

Intel® Processor N200

Quad-Core @ 6 W TDP

1.0/3.7/3.2 GHz*

GPU @ 0.45/0.75 GHz

32x EU

Up to 3 displays (2x 4K + 1x FHD)

DDR5-4800

One socket

Max. 32 Gbyte

K3931-N2

Intel® Processor N97

Quad-Core @ 12 W TDP (Flex cTDP option**)

2.0/3.6/2.9 GHz*

GPU @ 0.85/1.2 GHz

24x EU

Up to 3 displays (3x 4K)

DDR5-4800

One socket

Max. 32 Gbyte

K3931-N1

Intel® Processor N50

Dual-Core @ 6 W TDP

1.0/3.4/3.4 GHz*

GPU @ 0.6/0.75 GHz

16x EU

Up to 3 displays (2x 4K + 1x FHD)

DDR5-4800

One socket

Max. 32 Gbyte

*) Base Frequency / 1 core Turbo / Multi core Turbo

**) cTDP – Easy & flexible reduction of CPU TDP down to 6 W