K3921-H mSTX

Extended Lifecycle Motherboard supporting the Intel® Core™ i3 processors & Intel® processors N series

  • Supporting new Intel® Twin Lake Processors
  • Latest DDR5 memory technology for best-in-class system performance
  • Intel® UHD Gen12 Graphics - driven by Intel® Xe architecture (within SoC)
  • Up to 2x DisplayPort 1.4 and 1x DisplayPort via USB Type-C
  • eDP V1.4b (4 K) onboard
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Product Information

The Extended Lifecycle mSTX Motherboard K3921-H is based on the latest Intel® Core™ i3 and Intel® Processor series (Alder Lake N, Twin Lake) with powerful UHD Gen12 graphics using Intel® Xe architecture. There are two DisplayPorts 1.4 and one DisplayPort via front USB-Type-C plus onboard embedded DisplayPort. Three independent displays with up to 4K resolution (2x 4K + 1x FHD) are supported. The K3921-H is equipped with an M.2 Key-M connector with PCIe and SATA support and in addition to this an M.2 slot for WLAN/Bluetooth modules (PCIe and CNVi) and other PCIe based add on cards is also included. Via the front USB-Type-C the K3921-H supports PowerDelivery Sink mode, USB 3.2 Gen1 and DisplayPort AlternateMode (DPoC). This makes it the perfect fit for Thin Client applications, in combination with our very compact SMARTCASE™ S501 chassis. All components are designed and approved for 24/7 continuous operation.

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

 

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Technical data

ProcessorIntel® Processors N-series
ChipsetH1: Intel® Processor N100 (4C/6W) SoC H6: Intel® Core™ i3-N305 (8C/15W) SoC H7: Intel® Core™ 3 N355 (8C /15W) SoC H3: Intel® Processor N150 (4C /6W) SoC
Main Memory1x DDR5-4800 SODIMM Sockets up to 32 GByte, non-ECC
Graphics ControllerIntel UHD Graphics driven by Intel® Xe with 24 execution units (EUs)
Display1x Embedded DP (eDP V1.4b up to 4K resolution2) Following max. display combinations are supported 2x DPP + 1x DPoC / 2x DPP + eDP / 1x DPP + 1x DPoC + eDP

Downloads

Datasheet

PDF

Datasheet K3921-H mSTX

1.25 MB | March 26, 2026

Manuals

PDF

General Safety Instruction

628.88 KB | March 26, 2026

Technical Specification

PDF

Motherboard and SMARTCASE™ Tech Specs

8.28 MB | March 26, 2026

Service

PDF

Kontron Services Brochure

8.9 MB | March 26, 2026

White Paper

Modules and Motherboards WP

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Accessories

Select accessories here
SMARTCASE™ S501

SMARTCASE™ S501

Chassis Kit Solution for K3921-N & K3921-H mSTX

SMARTCASE™ S502

SMARTCASE™ S502

F5000-J015

Chassis Kit Solution for K4021- U mSTX

AC Adapter

AC Adapter

S26361-F5000-P006

19V / 3.42A, 65W - w/o power cord

DrivePowerCable

DrivePowerCable

S26361-F5000-K001

Drive Power Cable for SATA HDD and SATA slimline DVD (length 200 + 200 mm)

COM Cable short w/o bracket

COM Cable short w/o bracket

S26361-F5000-K007

w/o slot bracket, length = 120mm; new 2mm pitch internal connector

COM Cable "long"

COM Cable "long"

S26361-F5000-K010

with fullsize slot bracket

WLAN Kit for SMARTCASE™  S511

WLAN Kit for SMARTCASE™ S511

S26361-F5000-W005

left (grey)/right (black) Antenna (incl. cable) to be fitted into mSTX chassis

Wall Mount Bracket for SMARTCASE™ S511

Wall Mount Bracket for SMARTCASE™ S511

S26361-F5000-X001

2x Bracket per chassis incl. screws

VESA mount SMARTCASE™ S5xx

VESA mount SMARTCASE™ S5xx

S26361-F5000-X002

"E-Line bracket"

DC-In Holder for SMARTCASE™ S511

DC-In Holder for SMARTCASE™ S511

S26361-F5000-X003

Holder incl. screws

DP 20P M to HDMI Adapter

DP 20P M to HDMI Adapter

F5000-A007

DP 20P M to HDMI Adapter, up to 4k @ 60 Hz

Customer Portal

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