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Deep mini-ITX server motherboard with two SFP28 ports and LGA 1851 socket

ASRock Rack

ASRock Rack W880D4ID-2Q server motherboard LGA 1851 25GbE SFP28

SKU CH-37PN-8PZEQ MPN W880D4ID-2Q

Deep mini-ITX server board with dual 25GbE SFP28, four DDR5 5600 ECC slots and eight SATA 6.0Gb/s ports

  • CPU Socket TypeLGA 1851
  • CPU TypeIntel Core Ultra Processors (Series 2)
  • Number of Processor Support1
  • North BridgeIntel W880
  • Memory Slots4 x DDR5 288-pin
  • Memory StandardDDR5 5600
  • Supports Intel Core Ultra Series 2 processors via LGA 1851 socket
  • Four DDR5 288-pin slots accept up to 48 GB ECC memory
  • Dual 25 GbE SFP28 ports driven by Intel E830 controller
  • One PCIe 5.0 x16 slot plus three OCuLink connectors for storage expansion
  • Deep mini-ITX form factor fits 6.7" x 8.5937" chassis with ATX or 12 V DC power

Deep mini-ITX server board for Intel Core Ultra

The ASRock Rack W880D4ID-2Q is a single-socket LGA 1851 motherboard built on the Intel W880 chipset. It fits the deep mini-ITX footprint of 6.7 x 8.5937 inches and powers on from either an ATX supply or a 12 V DC source. Four DDR5 288-pin slots accept ECC or non-ECC UDIMM up to 48 GB at 5600 MT/s.

Network-first builds needing dual 25 GbE SFP28

Dual Intel E830 25 GbE SFP28 ports and a dedicated IPMI RJ45 make this board suited for storage nodes, hyper-converged clusters or edge appliances where high-throughput networking matters. Builds that require more than one CPU socket, more than 48 GB of memory, or more than a single PCIe 5.0 x16 slot should look elsewhere.

PCIe 5.0 x16 slot and three OCuLink connectors

The sole expansion slot is a PCIe 5.0 x16 connection wired to the CPU. Three OCuLink ports provide additional PCIe 4.0 x4 links, two of which can alternatively carry four SATA 6.0 Gb/s channels each. This layout determines how many accelerators, drives or NICs the system can support.

Highlights

  • Supports Intel Core Ultra Series 2 processors via LGA 1851 socket
  • Four DDR5 288-pin slots accept up to 48 GB ECC memory
  • Dual 25 GbE SFP28 ports driven by Intel E830 controller
  • One PCIe 5.0 x16 slot plus three OCuLink connectors for storage expansion
  • Deep mini-ITX form factor fits 6.7" x 8.5937" chassis with ATX or 12 V DC power

Specifications

BrandASRock
ModelW880D4ID-2Q
CPU Socket TypeLGA 1851
CPU TypeIntel Core Ultra Processors (Series 2)
Number of Processor Support1
North BridgeIntel W880
Memory Slots4 x DDR5 288-pin
Memory StandardDDR5 5600
Maximum Memory Supported48GB
ECC SupportedYes
PCI Express 5.0 x16SLOT7: PCIe5.0 x16 [CPU]
SATA8 x SATA 6.0Gb/s
SATA RAID0/1/5/10
M.21 M-key (PCIe5.0 x4), supports 2280 form factor [CPU]
1 M-key (PCIe4.0 x4), supports 2280 form factor [PCH]
Onboard Video ChipsetAspeed AST2600
LAN ChipsetIntel E830
LAN Speed25Gbps
Max LAN Speed2 x 25Gbps
Back I/O PortsUID Button/LED: 1 UID button, 1 UID LED
Video Port: 1 DB15 (VGA), 1 HDMI
USB 3.2 Gen1 Port: 2 Type-A (USB3.2 Gen1)
RJ45: 1 dedicated IPMI
Other network connector: 2 SFP28 (25GbE)
OCuLink:
2 OCuLink (PCIe4.0 x4 or 4 SATA 6Gb/s) [PCH]
1 OCuLink (PCIe4.0 x4) [PCH]
Onboard USBUSB 3.2 (Gen1) Header: 1 header (19-pin, 2 USB3.2 Gen1)
Other ConnectorsPower Connector: 1 Micro-Fit (4-pin, ATX PSU signal) w/ ATX 24-pin adapter cable, 2 (8-pin, ATX 12V) support 12V DC-in
Other Power Connectors: 1 (4-pin) for HDD power when using 12V DC-in power source
Auxiliary Panel Header: 1 (9-pin): chassis intrusion, system fault LED, LAN1/LAN2 activity LED, locate
System Panel: 1 (9-pin): power switch, reset switch, system power LED, HDD activity LED
COM Header: 1 (9-pin)
Speaker Header: 1
Fan Header: 3 (4-pin)
Thermal Sensor Header: 1
TPM Header: 1 (13-pin, SPI)
SGPIO Header: 1
SMBus header: 1
PMBus header: 1
IPMB Header: 1
Clear CMOS: 1(2-pin)
BIOS FeatureAMI 256Mb SPI Flash ROM
Plug and Play, ACPI 6.4 and above compliance wake up events, SMBIOS 2.3 and above, ASRock Rack Instant Flash
Form FactorMini ITX
Dimensions (W x L)6.7" x 8.5937"
Shipping weight0.79 kg
Package size262 × 216 × 79 mm

Questions about this item

What comes in the box with the W880D4ID-2Q and what must I buy separately?

The motherboard includes the I/O shield, SATA cables and mounting hardware; you must supply an LGA 1851 Intel Core Ultra Series 2 processor, DDR5 288-pin ECC or non-ECC UDIMMs, an ATX power supply or 12 V DC source, storage drives and a chassis that fits the 6.7" x 8.5937" deep mini-ITX form factor.

Which DDR5 capacity should I choose given the 48 GB maximum and four slots?

With four slots and a 48 GB limit, 16 GB modules would exceed the ceiling, so use 8 GB or smaller UDIMMs to populate all four slots or install fewer higher-capacity modules while staying at or below 48 GB total.

What does the 25 Gbps LAN speed mean for actual throughput on the dual SFP28 ports?

Each SFP28 port is driven by the Intel E830 controller at 25 Gbps line rate, providing two independent 25 GbE links for high-speed server networking.

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