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Green mini-ITX server board, AM4 socket, four DDR4 slots, dual 10GbE RJ45 ports, deep form factor

ASRock Rack

ASRock Rack B550D4ID-2L2T Deep mini-ITX server motherboard AM4 DDR4 3200 10GbE

SKU CH-6533-EWYK4 MPN B550D4ID-2L2T

Deep mini-ITX server board for AM4 Ryzen CPUs with four DDR4 ECC slots, dual 10GbE and dual 1GbE Intel LAN, PCIe 4.0 x16, four SATA and two M.2 slots

  • CPU Socket TypeSocket AM4
  • CPU TypeSupports: AMD Ryzen 5000 and 4000 G-Series Desktop Processor
  • Number of DDR4 Slots4 x 288-pin
  • DDR4 StandardDDR4 3200
  • ECC SupportedYes
  • PCI Express 4.0 x16SLOT7: PCIe4.0 x16 [CPU]
  • Supports AMD Ryzen 5000 and 3000 Series desktop processors
  • Four DDR4 3200 slots with ECC support for data integrity
  • Dual 10 GbE plus dual 1 GbE Intel LAN for high-throughput networking
  • PCIe 4.0 x16 slot and two M.2 slots for fast expansion
  • Deep mini-ITX form factor at 6.7" x 8.2" fits compact chassis

Deep mini-ITX server board

The ASRock Rack B550D4ID-2L2T is a deep mini-ITX motherboard built for AMD Socket AM4 processors. It accepts Ryzen 5000, 4000 and 3000 series desktop CPUs, including G-Series and PRO variants. Four 288-pin DDR4 slots run at 3200 and support ECC memory. The layout fits compact server chassis while keeping full expansion options.

Dual 10GbE and 1GbE networking

Two Intel X710-AT2 ports deliver 10GbE throughput and two Intel I210 ports provide 1GbE links, plus a dedicated IPMI LAN port for out-of-band management. This suits storage servers, virtualisation hosts and edge appliances that need high-speed wired connectivity. Builds relying on wireless networking or single-gigabit uplinks will not use the board's primary strength.

PCIe 4.0 x16 slot and dual M.2

A full-length PCIe 4.0 x16 slot driven by the CPU handles GPUs, compute cards or additional storage controllers. Two M-key M.2 sockets are available: one wired for PCIe 4.0 x4 or SATA, the other for PCIe 3.0 x2 or SATA, both supporting 2280 modules. Systems that require multiple x16 slots or more than two M.2 devices should consider a larger form factor.

Highlights

  • Supports AMD Ryzen 5000 and 3000 Series desktop processors
  • Four DDR4 3200 slots with ECC support for data integrity
  • Dual 10 GbE plus dual 1 GbE Intel LAN for high-throughput networking
  • PCIe 4.0 x16 slot and two M.2 slots for fast expansion
  • Deep mini-ITX form factor at 6.7" x 8.2" fits compact chassis

Specifications

BrandAsRock Rack
ModelB550D4ID-2L2T
CPU Socket TypeSocket AM4
CPU TypeSupports:
AMD Ryzen 5000 and 4000 G-Series Desktop Processors with Radeon Graphics
AMD Ryzen 5000 and 3000 Series Desktop Processors
AMD Ryzen PRO 5000, 4000 and 3000* Series Desktop Processors
* Not compatible with AMD Ryzen PRO 3000 Series Desktop Processors with Radeon Graphics
Number of DDR4 Slots4 x 288-pin
DDR4 StandardDDR4 3200
ECC SupportedYes
PCI Express 4.0 x16SLOT7: PCIe4.0 x16 [CPU]
SATA4 x SATA 6.0Gb/s
SATA RAID0/1/10
M.21 M-key (PCIe4.0 x4 or SATA 6Gb/s), supports 22110 (BTO)*/2280 form factor [CPU]
1 M-key (PCIe3.0 x2 or SATA 6Gb/s), supports 2280 form factor (BTO)** [FCH]
* M2_1 22110 form factor support is possible by depopulating BMC_SMB and IPMB header and other BOM change
** M2_2 support is possible by depopulating BMC_SMB and IPMB header and other BOM change
Onboard Video ChipsetAspeed AST2500
LAN Chipset1 Intel X710-AT2: 2 RJ45 (10GbE)
Second LAN Chipset2 Intel I210: 2 RJ45 (1GbE)
Max LAN Speed1Gbps
Back I/O PortsHDMI: 1
VGA Port: 1 DB15
USB 3.2 Gen1 Port: 2 Type-A (USB3.2 Gen1)
Lan Port: 2 RJ45 (10GbE), 2 RJ45 (1GbE)
Dedicate LAN: 1 dedicated IPMI
UID Button/UID LED: 1
Other ConnectorsCOM Header: 1
Auxiliary Panel Header: 1 (9-pin): chassis intrusion, system fault LED, LAN activity LED
TPM Header: 1 (17-pin, LPC), 1 (13-pin, SPI)
Thermal Sensor Header: 1
IPMB Header: 1
PMBus CONN: 1
Fan Header: 3 (4-pin)
Other Power Connectors: 1 (4-pin) for HDD power when using 12V DC-in power source
USB 3.2 (Gen1) Header: 1 (19-pin, 2 USB3.2 Gen1)
NMI Header: 1
System Panel: 1 (9-pin): power switch, reset switch, system power LED, HDD activity LED
Speaker Header: 1
BMC_SMB Header: 1
Power Connector: 1 (4-pin, ATX PSU signal) w/ ATX 24-pin adapter cable, 2 (8-pin, ATX 12V) suppor
Form FactorDeep mini-ITX
Dimensions (W x L)6.7" x 8.2"
Shipping weight0.91 kg
Package size275 × 216 × 76 mm

Questions about this item

Will the four DDR4 3200 slots accept my existing ECC UDIMMs?

Yes, the board supports 4 x 288-pin DDR4 3200 ECC and non-ECC UDIMM in a 2DPC layout.

How can I confirm the Intel X710 10GbE ports are active after installation?

Link LEDs on the two 10GbE RJ45 ports will light, and the IPMI interface will show port status once the BMC boots.

Does the box include a bracket for the 22110 M.2 slot or must I source one separately?

The 22110 form factor requires depopulating the BMC_SMB and IPMB headers, so a compatible bracket is not standard and must be obtained separately.

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