Product Comparison

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D3644-B µATX K3843-B µATX
  D3644-B µATX K3843-B µATX
  Extended Lifecycle Motherboard supporting the 8th/9th Gen Intel® Core™ i & Xeon® E-21xx/22xx Processors Extended Lifecycle Motherboard supporting Intel® Core™ Processors (12th/13th/14th Gen.)
ProcessorIntel® Xeon® E-21xx/E-22xx processor series Intel® 8th & 9th Gen. Core™ i9 / i7 / i5 / i3 Processor Series Intel® Pentium®/Intel® Celeron® processor seriesIntel® Core™ i9 / i7 / i5 / i3 Processor Series (12th/13th/14th Gen.) Intel® Pentium®/Intel® Celeron® processor series
ChipsetIntel® C246 ChipsetIntel® B660 Chipset
Main Memory4x DDR4 2666/2400/2133 DIMM up to 64GByte; ECC support4x DDR5-4800 DIMM Sockets up to 128 Gbyte, Dual Channel, non-ECC
Graphics ControllerIntel® UHD Graphics (depends on installed processor), DX12Intel® UHD Graphics 7xx (depends on installed processor)
Display2x DP V1.2 1x DVI-D4x DPP V1.4a up to 8K
Audio ControllerRealtek ALC671Tempo Semiconductor 92HD91B
Audio5.1-channel, High Definition Audio Codec5.1-channel; High Definition Audio Codec
EthernetIntel i219LM with 10/100/1000 MBit/sIntel® i219LM with 10/100/1000 MBit/s
USB4x USB 2.0 6x USB 3.1 Gen1 2x USB 3.1 Gen2 1x USB 3.1 Gen2 stick socket2x USB 3.2 Gen 2 (rear I/O, Type-A) 2x USB 3.2 Gen1 (rear I/O, Type-A) 2x USB 2.0 (rear I/O, Type-A) 2x USB 3.2 Gen1 (by header) 2x USB 2.0 (by header)
Serial1x RS232 (by header)1x RS232 (rear I/O)
Available I/Os--
SATA6x Serial ATA III 600 Interface (up to 6GBit/s), NCQ, AHCI, RAID 0/1/5/104x Serial ATA III 600 Interface (up to 6GBit/s), NCQ, AHCI, RAID 0/1/5/10
Expansion1x 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"2x M.2 2280 (Key-M, PCIe/NVME SSD modules) PCIe x16: 1x 16 lanes, Gen5/1x 1 lane, Gen4 PCIe x1: 2x Gen3, "closed slot"
Power connectorATX Power Supply (24+4 Pin)ATX (Multirail) plus 8-pin socket (12 V for CPU)
Input Voltage12 V and 3.3 V Supply Voltage on PCIe Slots 3.3 V Auxiliary Supply Voltage on PCIe Slots (Wake-Up Function)Multirail
BIOSAMI Aptio 5.x (UEFI) BIOSAMI Aptio 5.x (UEFI) BIOS
Watchdog3 Level HW Watchdog (BIOS POST / BIOS BOOT / OS)Recovery BIOS, System and BIOS Password, Boot Sequence Control, Serial/USB- Port Access Protection, Write Protection for Flash BIOS, EraseDisk (BIOS Feature), Trusted Platform Module (TPM)
Real Time Clockintegrated; CMOS Battery bufferedintegrated
Cooling3x PWM fan (1 x CPU / 2 x System)2x PWM fan (CPU/System)
Operating SystemWindows 10 Linux-64Windows 10 Windows 11 Linux-64
Mechanical DimensionsµATX (243.8 x 243.8 mm / 9.6" x 9.6")µATX (243.8 x 243.8 mm / 9.6" x 9.6")
Operating Temperature-10°C-50°C
Humidity5%-85%5%-85%
CertificationscTÜVus acc. IEC62368-1, CE Class B, FCC-B verifiedcTÜVus acc. IEC62368-1, CE Class B, UKCA


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