ASRock Rack / Server/workstation motherboards

ASRock Rack B650D4U

Model code: B650D4U

Motherboard

Motherboard, not a complete computer. CPU, memory and chassis are agreed separately. Form Factor: Micro-ATX · Chipset: AMD B650E · Dimensions: 9.6" x 9.6"

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ASRock Rack B650D4U — Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing. Citadex Systems · Specification source
01 / Specifications
Model code
B650D4U
Manufacturer designation
B650D4U
Form Factor
Micro-ATX
Dimensions
9.6" x 9.6"
CPU
Supports AMD EPYC™ 4005/4004 and AMD Ryzen™ 9000/8000/7000 Series Processors
Socket
Single Socket AM5 (LGA 1718)
Thermal Design Power
Up to 170W by proper cooling solution
Chipset
AMD B650E
Supported DIMM Quantity
4 DIMM slots (2DPC)
Supported Type
DDR5 288-pin ECC/non-ECC UDIMM
Max. Capacity per DIMM
48GB
Max. DIMM Frequency
5600 MHz (1DPC); 3600 MHz (2DPC)
BMC Controller
ASPEED AST2600
Additional Ethernet Controller
Intel® i210: 2 RJ45 (1GbE)
Selection limits
Motherboard only. CPU and memory specifications describe support, not included hardware. Consult CPU support/BIOS and memory QVL; DIMM speed/capacity depends on CPU and population.
Identifier scope
Documented model code. Regional ordering suffix and bundle are not invented and are confirmed separately.

Specification source: ASRock Rack ↗
Checked against documentation: 16.10.2026

Reference catalogue for quotation requests. Availability, production status, condition, price, lead time and warranty are individually confirmed. A listed part number is not a stock claim.