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ASRock Rack

ASRock Rack B650D4U-2L2T/BCM Micro-ATX server motherboard EPYC 4004 Ryzen 9000 8000 7000

SKU CH-N8Z4-GBC8W

Micro-ATX server board for single-socket AMD EPYC 4004 and Ryzen 7000/8000/9000 CPUs with four DDR5 ECC UDIMM slots, PCIe 5.0 x16 and x4, dual 10GbE Broadcom LAN, dual 1GbE Intel LAN.

  • ProcessorSupports AMD EPYC 4004 and AMD Ryzen 8000/7000 Series Proces
  • Form factorMicro ATX
  • CPU socketSingle Socket AM5 (LGA 1718)
  • Network speed10 Gbit/s
  • Supported CPU count1
  • Processor detailsThermal Design Power: Up to 170 W by proper cooling solution
  • Supports AMD EPYC 4004 and Ryzen 9000/8000/7000 series CPUs
  • 4 DDR5 DIMM slots with ECC up to 48 GB per module
  • Dual 10 GbE Broadcom BCM57416 plus dual 1 GbE Intel i210 LAN
  • PCIe 5.0 x16 and x4 slots plus PCIe 4.0 x1 expansion
  • M.2 slot with PCIe 5.0 x4 for 2280/2242 drives

Socket AM5 EPYC & Ryzen server board

The ASRock Rack B650D4U-2L2T/BCM is a Micro-ATX server motherboard built for the AM5 platform. It accepts a single AMD EPYC 4004 or Ryzen 9000, 8000 and 7000 series processor in the LGA 1718 socket. The B650E chipset provides PCIe 5.0 lanes to the primary expansion slots and the single M.2 connector. Dual 10 GbE and dual 1 GbE ports are integrated on board.

Suited for dense single-socket builds, not multi-CPU

This board fits builders who need a compact server platform with dual 10 GbE networking and ECC memory support in a 9.6-inch square form factor. It is not for deployments that require two processor sockets, more than four DIMM slots, or additional M.2 sockets beyond the single CPU-attached slot. Buyers needing more SATA ports than the four provided should also look elsewhere.

One M.2 slot wired to the CPU

The board includes a single M-key M.2 connector that operates at PCIe 5.0 x4 and accepts 2280 or 2242 form-factor drives. This lone slot is the only direct high-speed storage interface on the motherboard, so the number of fast drives you can install without add-in cards is limited to one. Plan your storage topology around this single connector.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $271.99
Typical for this category: the median of 776 items is $254.49.

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Specifications

Product
Brand nameAsRock Rack
Model nameB650D4U-2L2T/BCM
Processor
ProcessorSupports AMD EPYC 4004 and AMD Ryzen 8000/7000 Series Processors
CPU socketSingle Socket AM5 (LGA 1718)
Supported CPU count1
Processor detailsThermal Design Power: Up to 170 W by proper cooling solution
ChipsetAMD B650E
Memory
RAM slots4 DIMM slots (2DPC)
DDR5 288-pin ECC/non-ECC UDIMM
Supported memory5200 MHz (1DPC); 3600 MHz (2DPC)
Max supported RAMMax. Capacity per DIMM: 48 GB
ECC supportYes
Storage
SATA ports4 x SATA 6.0Gb/s
M.2 slots1 M-key (PCIe5.0 x4), supports 2280/2242 form factor [CPU]
Graphics
Onboard video chipAspeed AST2600
Connectivity
Network speed10 Gbit/s
Ethernet controllerBroadcom BCM57416: 2 RJ45 (10GbE)
Second LAN controllerIntel i210: 2 RJ45 (1GbE)
Second LAN speed10/100/1000 Mbit/s
Maximum network speed10 Gbit/s
Ports & slots
PCIe 5.0 x16 slotsSLOT6: PCIe5.0 x16 [CPU]
PCIe x4 slotsSLOT7: PCIe5.0 x4 [CPU]
PCIe x1 slotsSLOT4: PCIe4.0 x1 [FCH]
Rear panel portsUID Button/LED: 1 UID button w/ LED
VGA Port: 1 DB15 (VGA), 1 DisplayPort, 1 HDMI
Serial Port: 1 DB9 (COM)
USB 3.2 Gen1 Port: 4 Type-A (USB3.2 Gen1)
RJ45: 2 RJ45 (10GbE), 2 RJ45 (1GbE), 1 dedicated IPMI
Size & build
Form factorMicro ATX
Width and length9.6 in × 9.6 in

Questions about this item

Will my existing DDR5-5200 ECC UDIMMs run at full speed when I populate all four slots on the B650D4U-2L2T/BCM?

With one DIMM per channel the board runs DDR5 at 5200 MHz; filling all four slots (2DPC) drops the supported rate to 3600 MHz.

How can I verify the dual 10GbE and dual 1GbE ports are functioning after installation?

Connect each RJ45 to a switch, then check the OS network panel for 10 Gbps link speed on the Broadcom BCM57416 ports and 1 Gbps on the Intel i210 ports.

Which components ship with the board and what must I source separately?

The box contains the Micro-ATX motherboard, I/O shield and documentation; you must add an AM5 (LGA 1718) CPU, DDR5 ECC or non-ECC UDIMMs, storage drives and a chassis with adequate cooling for up to 170 W TDP.

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