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Asus RS520-E9-RS8 Scalable, High Performance 2U Server



  • Poweredby the latest 2nd Gen Intel Xeon Scalable processors withIndustry-leading 2TB memory capability
  • 8 x 3.5 Hot-Swap HDD Bays (4x NVMe Supported)
  • Comprehensive IT infrastructure management solution - ASMB9-iKVM and ASUS Control Center (ACC)
  • Thermal Radar and Auto Fan Control
  • Rack-optimized Design
  • 6 PCIe + 1 OCP Expansion Slots in 2U
  • Dual M.2 Support
  • OCP 2.0 Mezzanine

Industry-leading memory capability

With 16 RAM slots that support up to 2TB of fast, DDR4-2666MHz 3DS ECC RDIMMs or LRDIMMs, ASUS RS520-E9-RS8 delivers industry-leading memory capability for your business.

The best storage interface combination for software-defined storage management

8 x 3.5" / 2.5 hot-swap storage bays (supports 4 x 2.5 NVMe or SAS or SATA devices)

Optimized storage with hot-swap bays and dual M.2

ASUS RS520-E9-RS8 features two additional 2.5" hot-swap storage bays on its back panel and dual onboard M.2 slots that can be used for the main system disk as well as for memory caching. The dual M.2 SSDs can be configured as PCI-E RAID with Intel VROC to speed up storage caching.

Powered by the latest 2nd Gen Intel Xeon Scalable processors

RS520-E9-RS8 is built on the latest 2nd Gen Intel Xeon Scalable processors to deliver incredible 2U server performance, packing incredible power into minimal space. RS520-E9-RS8 offers breakthrough performance with the latest Intel Optane DC persistent memory with an over 88% gain in input/output operations per second (IOPS) compared with the same configuration in SSD. Featuring the latest Intel Deep Learning Boost technology to enhance deep learning capabilities, RS520-E9-RS8 achieves a 3.1X performance improvement in the ResNet-50 and SSD VGG-16 models, fully demonstrating the inference capability of the new platform.

Smart thermal design for energy efficiency

ASUS RS520-E9-RS8 features a smart Thermal Radar and Auto Fan Control design with more ambient thermal sensors for the CPU, memory, GPU and front-panel board that provide improved temperature monitoring and enable dynamic fan speed adjustment for better power efficiency.

Comprehensive IT infrastructure management solution

The latest ASMB9-iKVM module enables remote BIOS updates, fans control, standalone KVM/Java utilities, video recording and BSOD capture. With out-of-band management, ASMB9-iKVM provides around-the-clock remote monitoring and diagnostics even if the server operating system is down or offline through a user-friendly, web-based graphical interface that works with all major browsers. ASUS Control Center (ACC) is a centralized and integrated IT management platform for monitoring and controlling ASUS commercial products, including servers, workstations and digital signage. ACC enables easier server management with functions such as BIOS updating without restarting the system, remote monitoring of multiple systems via mobile devices, and one-click software updates and dispatching. Learn more about ACC

Rack-optimized thermal performance

With the CPU and memory configured in a front parallel design that enables efficient airflow for excellent thermal performance, ASUS RS520-E9-RS8 is optimized for rack placement.

Flexibility to grow with your business

ASUS RS520-E9-RS8 comes with a wide range of ports to provide a flexible and cost-effective computing environment with the ability to grow together with your business. RS520-E9-RS8 features:

  • A rack-optimized design
  • 8 x 3.5 Hot-swap HDD bays (4x NVMe Supported)
  • 6 PCIe + 1 OCP expansion slots in a 2U rack unit
  • OCP 2.0 Mezzanine
  • Dual M.2 support


Processor / System Bus

2 x Socket P (LGA 3647)

1st and 2nd Gen Xeon Scalable Processor Family (150W)

*Refer to support page for more information

UPI (10.4 GT/s)



Core Logic

Intel Lewisburg PCH C621


Total Slots : 16 (6-channel per CPU, 8 DIMM per CPU)

Capacity : Maximum up to 512GB RDIMM/Maximum up to 1024GB LRDIMM/Maximum up to 2048GB LR-DIMM 3DS

Memory Type :

DDR4 2933/2666 RDIMM

DDR4 2933/2666 LRDIMM

DDR4 2933/2666 LR-DIMM 3DS

Memory Size :

32GB, 16GB, 8GB, 4GB RDIMM



* Refer to support page for more information

* Actual memory frequency differs from Intel CPU types and memory module. Please check Intel official site for more detail about the memory types supported by each CPU.

Expansion Slots

2 x PCI-E x16 (Gen3 x16 link), LP, HL(CPU1: Slot 6;CPU2:Slot 1)

4 x PCI-E x8 (Gen3 x8 link), LP, HL(CPU2: slot 2-5)

1 x OCP 2.0 Mezzanine (Gen3 x16 link)(CPU1: MezzPCIE1-2)


SATA Controller :

Intel C621

11 x SATA3 6Gb/s ports (8 by 2 Mini-SAS Connector)

2 x M.2 connector (2280/2260/2242) (SATA 6Gb/s & PCIe Gen3 x4 link)

Intel Rapid Storage Technology Enterprise(RSTe) (For Linux/Windows)

(Support Software RAID 0, 1, 5, 10 )

IntelVROC (For Linux/Windows)

(Support Software RAID )

Optional kits Controller :

ASUS PIKE II 3008 8-port SAS HBA card

ASUS PIKE II 3108 8-port SAS HW RAID card

12G SAS Support

Drive Bays

8 x 2.5" or 3.5" Hot-swap Storage Device Bays (4 x NVMe Supported for CPU*2)

2 x 2.5" Hot-Swap Storage Device Bays (Rear) (SATA HDD/SSD Only)

2 x M.2 (2280, 2260, 2242) (Support SATA/PCIe M.2,SATA/PCIe RAID)

Auxiliary Storage FDD/CD/DVD

1xslim-type Optical Drive Bay

Options No Device/DVD-RW


1 x Dual Port Intel I350-AM2 Gigabit LAN controller + 1 x Mgmt LAN


Aspeed AST2500 with 64MB VRAM

Front I/O Ports

2 x USB 3.0 ports

1 x VGA port

Rear I/O Ports

2 x USB 3.0 ports

1 x VGA port

2 x RJ-45 GbE LAN ports

1 x RJ-45 Mgmt LAN port


Rear Switch/LED:

1 x Q-Code/Port 80 LED

1 x Power switch

Front Switch/LED:

1 x Power switch/LED

1 x Location switch/LED

1 x Reset switch

1 x HDD Access LED

1 x Message LED


* LAN3-4 for Mezzazine card use

OS Support

Please find the latest OS support from

Management Solution

ASUS Control Center Enterprise (Optional)

On-Board ASMB9-iKVM for KVM-over-IP

Regulatory Compliance



615mm x 444mm x 88mm (2U)

24.21" x 17.48" x 3.46"

Form Factor



Net Weight : 19.7KG

Gross Weight : 27.97KG

Power Supply

1+1 Redundant 800W 80 PLUS Platinum Power Supply

Rating: 100-127/200-240 Vac, 9.4 A/4.72 A, 47-63 Hz, Class I


Operation temperature: 10 ~ 35

Non operation temperature: -40 ~ 60

Non operation humidity: 20% ~ 90% ( Non condensing)

No additional files, specification sheets, guides or documentation found for product.

Warranty: 12 Month Return To Base

Full manufacturers warranty details are available at the manufacturers (ASUS) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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