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DFI CS331-C246NRM Intel 8th and 9th Gen Core Micro-ATX Embedded Motherboard with C246 Chipset, Dual LAN and Four Expansion Slots

The CS331-C246NRM is the Intel C246 chipset build in the DFI CS331 series, adding Xeon E processors, ECC memory and a sixth SATA port to the four PCIe Gen3 slots and M.2 NVMe. It suits compact servers, vision systems and data loggers on a Micro-ATX embedded motherboard.

  • Xeon E on Intel C246: Takes Xeon E-2124G, E-2176G, E-2226GE and E-2278GEL up to 80 W alongside 8th and 9th Gen Core, Pentium and Celeron.
  • ECC DDR4 Memory: Four DDR4 2666 MHz DIMM slots take up to 64 GB, with ECC on Xeon E, Core i3, Pentium and Celeron.
  • Six SATA with RAID: Six SATA 3.0 ports and an M.2 PCIe x4 Gen3 NVMe socket, with RAID 0, 1, 5 and 10.
  • Four PCIe Gen3 Slots: Two PCIe x16 slots running as one x16 or two x8, and two PCIe x4 slots, plus a full-size Mini PCIe slot.
  • Intel AMT and Triple Displays: Intel AMT on the I219LM port with Xeon, Core i5 and i7, and HDMI, DVI-D and DP++ outputs.
Processor Brand: IntelIntel
Operating Software: LinuxLinux
Multi Display Support: Triple Display SupportTriple Display Support
USB Generation: USB3USB3
M.2: 11x M.2
mPCIe: 11x mPCIe
PCIe: 44x PCIe
 NVMe: NVMe SSD SupportNVMe SSD
Certification: CECE
Certification: FCCFCC
UK Support Team: +44 (0)1785 558 300 Call
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CS331-C246NRM Overview

A small on-premise server or a vision system that stores inspection images for traceability benefits from ECC memory and a Xeon processor, without moving to a larger server board. The CS331-C246NRM is the C246 build of the CS331 series, a Micro-ATX embedded motherboard that adds Xeon E support, ECC memory and six SATA ports to four PCIe Gen3 slots.

The LGA1151 socket takes the four-core Xeon E-2124G at 71 W, the six-core E-2176G and E-2226GE at 80 W and the eight-core E-2278GEL at 35 W, alongside 8th and 9th Gen Core i3, i5 and i7, Pentium G5400 and Celeron G4900. Four DDR4 2666 MHz DIMM slots take up to 64 GB, with ECC on Xeon E, Core i3, Pentium and Celeron. Intel UHD Graphics drives HDMI, DVI-D and DP++ as three independent displays, and Intel AMT on the I219LM port works with Xeon, Core i5 and i7.

Storage covers six SATA 3.0 ports and an M.2 M-key socket for PCIe x4 Gen3 NVMe SSDs, with RAID 0, 1, 5 and 10. Expansion is two PCIe x16 slots, running as one x16 or two x8, two PCIe x4 Gen3 slots and a full-size Mini PCIe slot. The rear panel has two USB 3.1 Gen 2, two USB 3.1 Gen 1 and two USB 2.0 Type-A ports, two GbE ports and an RS-232/422/485 DB-9, and headers add two USB 3.1 Gen 2, four USB 2.0, three more COM ports and 8-bit digital I/O.

The CS331-C246NRM runs from a standard ATX supply over 24-pin and 8-pin connectors, with an active CPU cooler, from 0 to 60 °C, and carries CE, FCC, RoHS and KCC compliance. Where Core processors are enough and the system needs up to 128 GB of memory, the CS331-Q370NRM keeps the same slot layout on the Q370 chipset.

CS331-C246NRM Specifications

Overview
Brand & ModelDFI CS331-C246NRM
FeaturesEmbedded
Industrial
Performance
Processor SeriesIntel Core 8th Gen Coffee Lake
Intel Core 9th Gen Coffee Lake
Intel Celeron G Series Coffee Lake
Intel Pentium G Series Coffee Lake
Processor ModelsIntel Celeron G4900: 3.1GHz, 2 Cores, 2 Threads, 2MB Cache, 54W
Intel Celeron G4900T: 2.9GHz, 2 Cores, 2 Threads, 2MB Cache, 35W
Intel Pentium Gold G5400: 3.7GHz, 2 Cores, 4 Threads, 4MB Cache, 58W
Intel Pentium Gold G5400T: 3.1GHz, 2 Cores, 4 Threads, 4MB Cache, 35W
Intel Core i3-8100: 3.6GHz, 4 Cores, 4 Threads, 6MB Cache, 65W
Intel Core i3-8100T: 3.1GHz, 4 Cores, 4 Threads, 6MB Cache, 35W
Intel Core i3-9100E: 3.1~3.7GHz, 4 Cores, 4 Threads, 6MB Cache, 65W
Intel Core i3-9100TE: 2.2~3.2GHz, 4 Cores, 4 Threads, 6MB Cache, 35W
Intel Xeon E-2124G: 3.4~4.5GHz, 4 Cores, 4 Threads, 8MB Cache, 71W
Intel Core i5-8500: 3.0~4.1GHz, 6 Cores, 6 Threads, 9MB Cache, 65W
Intel Core i5-8500T: 2.1~3.5GHz, 6 Cores, 6 Threads, 9MB Cache, 35W
Intel Core i5-9500E: 3.0~4.2GHz, 6 Cores, 6 Threads, 9MB Cache, 65W
Intel Core i5-9500TE: 2.2~3.6GHz, 6 Cores, 6 Threads, 9MB Cache, 35W
Intel Xeon E-2226GE: 3.4~4.6GHz, 6 Cores, 6 Threads, 12MB Cache, 80W
Intel Xeon E-2278GEL: 2.0~3.9GHz, 8 Cores, 16 Threads, 16MB Cache, 35W
Intel Core i7-8700: 3.2~4.6GHz, 6 Cores, 12 Threads, 12MB Cache, 65W
Intel Core i7-8700T: 2.4~4.0GHz, 6 Cores, 12 Threads, 12MB Cache, 35W
Intel Core i7-9700TE: 1.8~3.8GHz, 8 Cores, 8 Threads, 12MB Cache, 35W
Intel Xeon E-2176G: 3.7~4.7GHz, 6 Cores, 12 Threads, 12MB Cache, 80W
Performance Cores2 Cores
4 Cores
6 Cores
8 Cores
Memory4x DDR4 2666MHz LONG-DIMM Slots, 64GB
ChipsetIntel C246
BIOSAMI
Operating SystemLinux
Graphics
Integrated GPUIntel UHD Series
Display StandardsDP++
Multi Display SupportTriple Display Support
Display Outputs1x Display Port
1x DVI
1x HDMI
Audio
InterfaceLine-In
Line-Out
Mic-In
I/O
Ethernet2x Ethernet Ports
2x GbE LAN [RJ45]
LAN ControllersIntel i210AT
Intel I219LM
USB12x USB Ports
2x USB 3.1 Gen 2 [Board]
2x USB 2.0 [Type A]
2x USB 3.1 Gen 1 [Type A]
2x USB 3.1 Gen 2 [Type A]
4x USB 2.0 [Board]
Serial4x Serial Ports
1x RS232/422/485 [Board]
1x RS232/422/485 [DB9]
2x RS232 [Board]
Digital I/ODIO [8-lines]
Remote ManagementIntel AMT
Expansion
M.21x M.2 Expansion Slots
1x M.2 M-Key [PCIe x4] [2242/2260/2280]
mPCIe1x mPCIe Slots
1x mPCIe [PCIe/USB/SATA]
PCIe4x PCIe Slots
2x PCIe [x16 Slot] [1x16 Signal or 2x8 Signal] [Gen3]
2x PCIe [x4 Slot] [Gen3]
Storage
Storage1x M.2 SSD
6x SATA Ports
NVMeNVMe SSD Support
Power
Power InputATX Power Supply [8+24 Pin]
Environmental Conditions
Operating Temperature0°C to 60°C [32°F to 140°F]
Storage Temperature-30°C to 60°C [-22°F to 140°F]
Humidity5% - 90% (Non-condensing)
CertificationCE
FCC
KC
RoHS
Mechanical Properties
Dimensions244mm x 244mm (9.61" x 9.61")

Official DFI UK Distributor

Things Embedded is an official DFI UK distributor, supplying the CS331-C246NRM configured with your chosen Xeon E or Core processor, ECC or non-ECC memory, NVMe storage and OS image, fitted with a CPU cooler matched to its TDP and tested before it ships. If the enclosure runs warmer or you want Wi-Fi on an M.2 E-key socket, the CS350 keeps this slot layout with -5 to 65 °C operation. We can advise on Xeon selection, ECC memory and RAID set-up.

Compare it with our ATX and Micro-ATX embedded motherboards, browse our embedded motherboards, or see our embedded boards in other sizes.

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Things Embedded is a leading UK supplier of industrial computing and edge AI systems. We combine technical expertise with a collaborative approach to deliver optimal solutions for your application. Whether it’s an off-the-shelf platform or a custom design, we stay at the forefront of the latest technologies to ensure your success at the edge. Our team works closely with you from concept through deployment, providing guidance, engineering support, and integration expertise every step of the way.

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