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Silver 1U rackmount barebone server, two front 2.5 inch drive bays, dual RJ45 ports

ASRock Rack

ASRock Rack 1U2S-B650 barebone server AM5 2×2.5" SATA bays 2×1GbE

SKU CH-169G-43B2G MPN 1U2S-B650

1U rackmount barebone supporting AM5 EPYC 4004 and Ryzen 7000/8000/9000 CPUs with four DDR5 ECC slots, two hot-swap 2.5" SATA bays, dual 1GbE LAN and 315W 80-PLUS Gold PSU

  • WorkloadEdge Server
  • CPU TypeAMD Ryzen 7000 Series
  • CPU SocketAM5
  • 1U rackmount with 80-PLUS Gold 315W PSU for efficient power
  • Single AM5 socket supports EPYC 4004 and Ryzen 7000/8000/9000 CPUs
  • Four DDR5 ECC UDIMM slots deliver high-capacity memory
  • Two hot-swap 2.5″ SATA bays plus one fixed 3.5″ bay for storage flexibility
  • Dual 1GbE Intel i210 ports plus PCIe 5.0 and 4.0 M.2 slots for fast I/O

Compact 1U server barebone

The ASRock Rack 1U2S-B650 is a 1U rackmount barebone designed for edge workloads. It fits a single AM5 socket and a 315W 80-PLUS Gold power supply. The chassis holds two hot-swap 2.5" SATA bays and one fixed 3.5" bay.

Suited for single-socket edge builds

This unit suits builders who need a compact AMD platform with dual 1GbE ports and a full-height PCIe 4.0 x16 slot. It does not suit buyers who require dual-socket capacity, 10GbE networking or more than two hot-swap drive bays.

AM5 socket with DDR5 ECC support

The motherboard provides four DDR5 UDIMM slots with ECC and non-ECC support for AMD Ryzen 7000, 8000, 9000 and EPYC 4004 processors. It adds one M.2 PCIe 5.0 x4 and one M.2 PCIe 4.0 x4 slot for storage expansion.

Highlights

  • 1U rackmount with 80-PLUS Gold 315W PSU for efficient power
  • Single AM5 socket supports EPYC 4004 and Ryzen 7000/8000/9000 CPUs
  • Four DDR5 ECC UDIMM slots deliver high-capacity memory
  • Two hot-swap 2.5″ SATA bays plus one fixed 3.5″ bay for storage flexibility
  • Dual 1GbE Intel i210 ports plus PCIe 5.0 and 4.0 M.2 slots for fast I/O

Specifications

WorkloadEdge Server
CPU TypeAMD Ryzen 7000 Series
CPU SocketAM5
Shipping weight11.47 kg
Package size625 × 565 × 205 mm

Questions about this item

How many DIMM slots does the 1U2S-B650 provide for DDR5 ECC or non-ECC memory?

The barebone includes four DIMM slots that accept DDR5 ECC and non-ECC UDIMMs in a two DIMMs per channel layout.

What is the rated efficiency and output of the included power supply?

An 80 PLUS Gold certified 315 W unit is pre-installed in the 1U chassis.

Which processor socket must the CPU match for this barebone?

The board uses a single AM5 socket (LGA 1718) for AMD EPYC 4004 or Ryzen 7000/8000/9000 series processors.

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