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Green micro-ATX server board with silver CPU socket and four black memory slots

ASUS

ASUS P11C-M/4L LGA1151 C242 DDR4 mATX server motherboard

SKU CH-4H4W-M8RZ9

Micro-ATX server board for Intel Xeon E and Core processors with four gigabit LAN ports, six SATA connections and up to 128 GB DDR4 ECC memory

  • CPU Socket TypeLGA 1151
  • CPU TypeIntel Xeon processor E-2100 family Intel Core i3 processors
  • North BridgeIntel C242
  • DDR4 StandardDDR4 2666 / 2400 UDIMM non ECC and with ECC
  • Maximum Memory Supported64GB
  • PCI Express x16Slot Location 6: PCI-E x16 (Gen3 X16 Link), Auto switch to x
  • Supports Xeon E-2100/2200 and 8th/9th gen Core i3/Pentium/Celeron CPUs
  • Four DDR4 slots accept up to 128 GB ECC or non-ECC memory at 2666 MHz
  • Quad Intel I210AT Gigabit LAN ports with teaming and failover plus dedicated management LAN
  • Six SATA 6 Gb/s ports with Intel RSTe RAID 0/1/5/10 and M.2 2242 slot
  • Micro-ATX 9.6" × 9.6" form factor fits short-depth racks with two PCIe Gen3 expansion slots

Compact micro-ATX server board

The ASUS P11C-M/4L is a micro-ATX motherboard built on the Intel C242 chipset for LGA 1151 socket processors. It supports Intel Xeon E-2100 family CPUs alongside Core i3, Pentium and Celeron chips up to 95W TDP. Four DDR4 DIMM slots accept UDIMM modules at 2666 or 2400 MHz with or without ECC. The board fits short-depth chassis measuring 9.6 by 9.6 inches.

Suited for dense rack and virtualisation hosts

This board suits administrators who need four gigabit Ethernet ports with teaming and failover plus a dedicated management LAN. Six SATA 6Gb/s ports and one M.2 2242 connector handle storage, while Intel RSTe provides software RAID 0, 1, 5 and 10. Builds needing more than six SATA ports or a second full-length PCIe x16 slot should consider other form factors.

Expansion decided by two PCIe Gen3 slots

The decisive spec is the pair of PCI Express Gen3 slots: one x16 link that drops to x8 when the second x8 slot is populated. This layout determines whether a RAID controller, NIC or GPU can be added alongside another card. Optional ASUS PIKE II 3008-8i or 3108-8i SAS cards connect via these slots for 12G SAS RAID.

Highlights

  • Supports Xeon E-2100/2200 and 8th/9th gen Core i3/Pentium/Celeron CPUs
  • Four DDR4 slots accept up to 128 GB ECC or non-ECC memory at 2666 MHz
  • Quad Intel I210AT Gigabit LAN ports with teaming and failover plus dedicated management LAN
  • Six SATA 6 Gb/s ports with Intel RSTe RAID 0/1/5/10 and M.2 2242 slot
  • Micro-ATX 9.6" × 9.6" form factor fits short-depth racks with two PCIe Gen3 expansion slots

Specifications

BrandASUS
ModelP11C-M/4L
CPU Socket TypeLGA 1151
CPU TypeIntel Xeon processor E-2100 family
Intel Core i3 processors
Intel Pentium processors
Intel Celeron processors
North BridgeIntel C242
DDR4 StandardDDR4 2666 / 2400 UDIMM non ECC and with ECC
Maximum Memory Supported64GB
PCI Express x16Slot Location 6: PCI-E x16 (Gen3 X16 Link), Auto switch to x8 link if slot 7 is occupied
PCI Express x8Slot Location 7: PCI-E x8 (Gen3 X8 Link)
SATAIntel C242 Chipset
6 x SATA3 6Gb/s ports
1 x M.2 connector (2242)
SATA RAIDIntel Rapid Storage Technology Enterprise (RSTe) (For Linux / Windows) (Support Software RAID 0, 1, 5, 10 )
SASSAS Controller :
ASUS PIKE II 3008-8i 8-port SAS 12G RAID card (Optional)
ASUS PIKE II 3108-8i 8-port SAS 12G HW RAID card (Optional)
Onboard Video ChipsetAspeed AST2500 with 32MB VRAM
Number of LAN4 x Intel I210AT + 1 x Mgmt LAN
LAN ChipsetIntel I210-AT
LAN Speed10/100/1000Mbps
Second LAN ChipsetIntel I210-AT
Second LAN Speed10/100/1000Mbps
Max LAN Speed4 x 1Gbps
Video Ports1 x VGA Port
RJ454 x GbE LAN + 1 x Mgmt LAN
USB 3.12 x USB 3.1 Gen 2
2 x USB 3.1 Gen 1
FeaturesPowered by the Intel Xeon E platform
95W CPU and up to 64GB memory support (4 DIMMs)
Rack-optimized design maximizes cooling for excellent thermal efficiency
Flexible expandability with 6 native SATA HDDs and two PCIe Gen3 slots
Quad Intel I210AT Gigabit Ethernet with teaming support
Dual M.2 for up to 32 Gbps performance and data redundancy
TPM-M 2.0 support for enhanced platform integrity
Complete server management with ASUS Control Center
Optional ASMB9-iKVM module available for 24/7 remote monitoring and diagnostics
Form FactoruATX
Dimensions (W x L)9.6" x 9.6"
Package ContentsMotherboard with an IO-Shield Only. No Original Box and NO Other Accessories.

Questions about this item

Should I choose the 64 GB or 128 GB memory limit for this board?

The official specification lists 64 GB maximum, while the manufacturer highlights mention up to 128 GB across four DIMM slots. Plan for 64 GB unless you validate 128 GB with your specific CPU and BIOS revision.

What does the DDR4 2666 figure mean once the board is running?

DDR4 2666 is the highest rated UDIMM speed the memory controller supports. With ECC or non-ECC modules installed the system will operate at 2666 MT/s or fall back to 2400 MT/s depending on the processor and DIMM configuration.

How does the PCIe Gen3 x16 slot share bandwidth with the second slot?

Slot 6 runs at Gen3 x16 link width, but automatically drops to x8 when slot 7 is occupied because both slots share the CPU's Gen3 lane budget.

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