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K3881-C µATX – Industrial Server Motherboard with Xeon and 10GbE by Kontron

The Kontron K3881-C µATX is an industrial server motherboard designed and manufactured in Germany, supporting Intel Xeon 6300 and E-2400 series processors as well as Pentium Gold G7400 variants in the LGA1700 socket at up to 95 W TDP, paired with the Intel C266 chipset. DDR5-5600 ECC UDIMM memory up to 128 GB, dual 10 GbE via Intel E610, PCIe Gen5 x16 expansion, a custom BMC with Redfish and IPMI remote management, and 5G readiness make it a strong fit for industrial edge server and entry-level cloud applications. Available from Recab, your Nordic partner for Kontron industrial server motherboard solutions.

manufacturer

Kontron

product model

K3881-C
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CE Certified, FCC Certified

Overview

The Kontron K3881-C µATX is the first industrial server motherboard designed and built in Germany by Kontron, offering enterprise-grade reliability and security in the compact Micro-ATX form factor at 243.8 x 243.8 mm. Built on the Intel C266 chipset with an LGA1700 socket supporting Intel Xeon 6300 series, Xeon E-2400 series, and Pentium Gold G7400/G7400T processors at up to 95 W TDP, it delivers server-class processing for industrial edge and entry-level cloud deployments. Four DDR5-5600 UDIMM slots support up to 128 GB of ECC memory, with actual memory speed dependent on the processor installed. A custom BMC developed by Kontron enables full out-of-band remote management via ASPEED A2600, supporting Redfish API and IPMI protocols with dedicated management LAN via Realtek RTL8211F, alongside a BMC hardware watchdog and heartbeat, Port 80, and fault LED monitoring. Networking is delivered by two Intel I210AT 1 GbE ports and one Intel E610-XAT2 dual 10 GbE port, with LAN teaming and PXE support. PCIe expansion spans one Gen5 x16 slot for high-performance GPU or acceleration cards, one Gen4 x4 (mechanical x16 with retention), and one Gen4 x1 open slot. Storage includes four SATA III 600 ports, a switchable MCIO slot for four additional SATA or PCIe Gen4 lanes, two M.2 Key-M NVMe slots, one M.2 Key-B with 5G readiness, and one M.2 Key-E for WLAN and Bluetooth. Eight-bit GPIO, one RS-232 rear port, a nano SIM card slot, and 5+ year availability with 24/7 continuous operation approval round out the specification. Available from Recab, your Nordic partner for Kontron industrial server motherboard solutions.
ECC Memory, High Performance, Long Lifecycle, NVMe Storage, Remote Management, Rugged Design

Key highlights

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Features

  • Intel Xeon 6300 and E-2400 series processor support in LGA1700 socket with Intel C266 chipset delivers server-grade industrial performance.
  • Four DDR5-5600 UDIMM slots support up to 128 GB of ECC memory for error-corrected industrial server workloads.
  • Intel E610-XAT2 dual 10 GbE port combined with two Intel I210AT 1 GbE ports provides high-throughput redundant networking.
  • Custom Kontron BMC with ASPEED A2600, Redfish, and IPMI support enables secure full out-of-band remote server management.
  • PCIe Gen5 x16 plus Gen4 x4 and Gen4 x1 expansion slots accommodate GPU accelerators and high-bandwidth PCIe devices.
  • 5G-ready M.2 Key-B slot, M.2 Key-E for WLAN, and nano SIM card support enable cellular and wireless connectivity integration.

Specifications

Processor Intel® XEON® 6300 series
Chipset Intel® C266 Chipset
Memory DDR5 5600 SDRAM, up to 128GB
Video ASPEED 2600 Video Adapter
Ethernet1 Intel® I210AT 1GbE
Ethernet2 Intel® I210AT 1GbE
Ethernet3/4 Intel® E610-XAT2 10GbE
USB 2x USB 3.2 Gen1, 2x Gen2
SATA 4x SATA 6G Ports
Power +12V, ATX Multirail

Applications

  • Industrial edge server and entry-level cloud computing requiring Xeon performance with remote IPMI management
  • Factory automation and SCADA systems demanding server-grade ECC memory and 10 GbE throughput
  • 5G-connected industrial gateway platforms with M.2 Key-B cellular module and dual 10 GbE networking
  • High-availability industrial computing requiring BMC watchdog, Redfish management, and 5-year product availability

Resources

Datasheet

https://recab.com/wp-content/uploads/2025/10/k3881-c-c2b5atx-industrial-server-datasheet-1.pdf

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