D3644-B µATX

Extended Lifecycle Motherboard "Designed by Fujitsu" supporting the 8th & 9th Gen Intel® Core™ i9 / i7 / i5 / i3 & Xeon® E-21xx/22xx Processors
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  • cTDP – Easy & flexible reduction of CPU TDP
  • Supporting Intel® AMT 12.0/vPro
  • 6x SATA/RAID
  • M.2 SSD & M.2 WLAN Slots onboard
  • Powerful USB 3.1 Gen2
Download Datasheet

The Motherboard D3644-B μATX of the Extended Lifecycle Series is the best solution for demanding requirements. It supports the Intel® Xeon® E-21xx/E-22xx processor series, the Intel® Core™ i9/i7/i5/i3 (8th/9th Gen) and the Intel® Pentium®/Intel® Celeron® processor series. The D3644-B μATX is “designed by Fujitsu” and therefore made in Germany. Furthermore, it provides highest performance and functionality while keeping energy consumption at an extraordinary low level.


If you are interested in the TechNotes of this motherboard, please follow the link to our Kontron FTP Server.
Please send a short e-mail to pcmb-sales@kontron.com to get the related password!


Processor Intel® Xeon® E-21xx/E-22xx processor series
Intel® 8th & 9th Gen. Core™ i9 / i7 / i5 / i3 Processor Series
Intel® Pentium®/Intel® Celeron® processor series
Chipset Intel® C246 Chipset
Main Memory 4x DDR4 2666/2400/2133 DIMM up to 64GByte; ECC support
Graphics Controller Intel® UHD Graphics (depends on installed processor), DX12
Display 2x DP V1.2
1x DVI-D
Audio Controller Realtek ALC671
Audio 5.1-channel, High Definition Audio Codec
Ethernet Intel i219LM with 10/100/1000 MBit/s
USB 4x USB 2.0
6x USB 3.1 Gen1
2x USB 3.1 Gen2
1x USB 3.1 Gen2 stick socket
Serial 1x RS232 (by header)
Available I/Os -
SATA 6x Serial ATA III 600 Interface (up to 6GBit/s), NCQ, AHCI, RAID 0/1/5/10
Expansion 1x M.2 Key-M PCIe (2280)
1x M.2 Key-E (2230)
PCIe x16: 1x 16 lanes, Gen3/1x 4 lanes, Gen3
PCIe x1: 1x Gen3, "open"/1x 1 lane, Gen3, "closed"
Power connector ATX Power Supply (24+4 Pin)
Input Voltage 12 V and 3.3 V Supply Voltage on PCIe Slots
3.3 V Auxiliary Supply Voltage on PCIe Slots (Wake-Up Function)
Watchdog 3 Level HW Watchdog (BIOS POST / BIOS BOOT / OS)
Real Time Clock integrated; CMOS Battery buffered
Cooling 3x PWM fan (1 x CPU / 2 x System)
Operating System Windows 10
Mechanical Dimensions µATX (243.8 x 243.8 mm / 9.6" x 9.6")
Operation Temperature 10°C-50°C
Humidity 5%-85%
Certifications cTÜVus acc. IEC62368-1, CE Class B, FCC-B verified



Datasheet D3644-B μATX
[ d3644-b-matx_20210210_datasheet.pdf, 1.11 MB, Feb.11.2021 ]


Kontron FTP Server

General Safety Instruction
[ general-safety-instructions.pdf, 560.72 KB, Jan.04.2021 ]

Tech Spec Sheet

Motherboard and SMARTCASE™ Tech Specs
[ tech-specs_motherboards-and-smartcase.pdf, 3 MB, Feb.25.2021 ]


Kontron Services Brochure
[ kontron-services-brochure.pdf, 8.9 MB, Dec.17.2020 ]


VGA Converter Card
VGA Converter Card full/half bracket tbd  
PCIe x1 LAN Controller
PCIe x1 LAN Controller Broadcom LAN controller w/o DASH; incl. FH&LP-Slotbracket  
Single M.2 Carrier Board
Single M.2 Carrier Board M.2 PCIe only  


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