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Green Mini-ITX server board with four DDR4 slots, four RJ45 ports, D-Sub video and dual power inputs

ASRock Rack

ASRock Rack D1622D4I Mini-ITX server motherboard Intel Xeon D 1600 DDR4 2133 128GB 10GbE 1GbE

SKU CH-23V7-S0AMJ MPN D1622D4I

Mini-ITX server board for Intel Xeon D 1600 CPUs with four DDR4 2133 slots, 128 GB ECC capacity, dual 10 GbE and dual 1 GbE ports, plus IPMI remote management

  • CPU TypeSupports Intel Xeon D 1600 Processor
  • Number of DDR4 Slots4 x 288-pin
  • DDR4 StandardDDR4 2133
  • Maximum Memory Supported128GB
  • ECC SupportedYes
  • RegisteredYes
  • Supports up to 128GB DDR4 ECC memory for reliable server workloads
  • Dual 10GbE Intel X557 ports deliver high-throughput network connectivity
  • Additional dual 1GbE Intel I210 links provide flexible management traffic separation
  • Mini-ITX form factor with PCIe 3.0 x16 and M.2 enables dense expansion
  • IPMI remote management via Aspeed AST2500 simplifies headless administration

Compact server board with integrated Xeon D 1600

This Mini-ITX motherboard integrates an Intel Xeon D 1600 processor and provides four DDR4 2133 slots for up to 128 GB of ECC registered memory. Dual 10 GbE and dual 1 GbE ports handle demanding network workloads. IPMI remote management and both 12 V DC and ATX power inputs suit space-constrained deployments.

Suited for dense network appliances

Builders who need high core counts or discrete GPU support should look elsewhere because the single PCIe 3.0 x16 slot and M.2 connector limit expansion. The board also lacks consumer audio or Wi‑Fi features, making it a poor fit for workstation or desktop use.

Four DDR4 slots with 128 GB ECC registered capacity

Memory capacity is the decisive specification: the four 288‑pin slots accept DDR4 2133 RDIMM or UDIMM modules up to 128 GB total with ECC and registered support. If your application requires more memory channels or a different DDR generation, this board will not meet the requirement.

Highlights

  • Supports up to 128GB DDR4 ECC memory for reliable server workloads
  • Dual 10GbE Intel X557 ports deliver high-throughput network connectivity
  • Additional dual 1GbE Intel I210 links provide flexible management traffic separation
  • Mini-ITX form factor with PCIe 3.0 x16 and M.2 enables dense expansion
  • IPMI remote management via Aspeed AST2500 simplifies headless administration

Specifications

BrandAsRock Rack
ModelD1622D4I
CPU TypeSupports Intel Xeon D 1600 Processor
Number of DDR4 Slots4 x 288-pin
DDR4 StandardDDR4 2133
Maximum Memory Supported128GB
ECC SupportedYes
RegisteredYes
PCI Express 4.0 x16SLOT7: PCIe3.0 x16
M.21 x M.2
Onboard Video ChipsetAspeed AST2500
LAN ChipsetIntel X557-AT2
LAN Speed10Gbps
Second LAN ChipsetIntel I210
Second LAN Speed10/100/1000Mbps
Max LAN Speed2 x 10Gbps + 2 x 1Gbps
Back I/O Ports1 x D-Sub / 2 x USB 3.2 Gen 1 Type-A / 4 x LAN (RJ45)
Onboard USBUSB 3.2 (Gen1) Header: 1 (19-pin, 2 USB 3.2 Gen1)
Other ConnectorsPower Connector: 1 x (4-pin) + 1 x (8-pin) support 12V DC-IN
Other Power Connectors: 1 (4-pin,SATA Power for DC-IN mode), 1 (3-pin, SATA DOM Power)
*Caution: Misconnection between the ATXPWR1 and the HDDPWR1 con- nectors may permanently damage the motherboard.
Auxiliary Panel Header: 1 (includes chassis intrusion, 2 front LAN LED, System LED)
System Panel: 1
Speaker Header: 1
Fan Header: 4
TPM Header: 1
SGPIO Header: 1
PMBus header: 1
Clear CMOS: 1 (short pad)
BIOS Feature16MB AMI UEFI Legal BIOS
Plug and Play (PnP)
ACPI 2.0 Compliance Wake Up Events
SMBIOS 2.8.0 Support
ASRock Rack Instant Flash
Form FactorMini ITX
Dimensions (W x L)6.7" x 6.7"
Shipping weight0.89 kg
Package size279 × 241 × 64 mm

Questions about this item

How do I avoid damaging the board when connecting the 4-pin ATXPWR1 and 8-pin HDDPWR1 power cables?

The manual cautions that misconnecting the 4-pin ATXPWR1 and 8-pin HDDPWR1 connectors may permanently damage the motherboard; verify each header's label and keying before applying power.

Which memory modules should I buy for the four 288-pin slots to reach the 128 GB maximum?

Install four DDR4 2133 registered ECC RDIMMs; the board supports up to 128 GB total across its four slots and also accepts ECC or non-ECC UDIMMs.

What limits sustained 10 GbE throughput on the dual Intel X557 ports?

The two 10 GbE links run over PCIe 3.0 lanes from the Xeon D SoC, so total throughput is bounded by the PCIe 3.0 x4 bandwidth available to the X557 controller.

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