Kontron ToolSuite
Central Management Solution for BIOS Configuration in Embedded Systems.




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:

| Processor | Intel® Processors N-series |
|---|---|
| Chipset | H1: 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 Memory | 1x DDR5-4800 SODIMM Sockets up to 32 GByte, non-ECC |
| Graphics Controller | Intel UHD Graphics driven by Intel® Xe with 24 execution units (EUs) |
| Display | 1x 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 |
Motherboard and SMARTCASE™ Tech Specs
8.28 MB | March 26, 2026
Modules and Motherboards WP
CRA Compliance with Axivion
Achieve IEC 62443 and Cyber Resilience Act (CRA) compliance with Axiivion

SMARTCASE™ S501
Chassis Kit Solution for K3921-N & K3921-H mSTX

SMARTCASE™ S502
F5000-J015
Chassis Kit Solution for K4021- U mSTX

AC Adapter
S26361-F5000-P006
19V / 3.42A, 65W - w/o power cord

DrivePowerCable
S26361-F5000-K001
Drive Power Cable for SATA HDD and SATA slimline DVD (length 200 + 200 mm)

COM Cable short w/o bracket
S26361-F5000-K007
w/o slot bracket, length = 120mm; new 2mm pitch internal connector

COM Cable "long"
S26361-F5000-K010
with fullsize slot bracket

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
S26361-F5000-X001
2x Bracket per chassis incl. screws

VESA mount SMARTCASE™ S5xx
S26361-F5000-X002
"E-Line bracket"

DC-In Holder for SMARTCASE™ S511
S26361-F5000-X003
Holder incl. screws

DP 20P M to HDMI Adapter
F5000-A007
DP 20P M to HDMI Adapter, up to 4k @ 60 Hz
This section is exclusively for Kontron customers. After registration, you will gain access to BIOS images, Product Change Notifications (PCNs), 3D models for CAD, and software development tools.