Four hot-pluggable systems (nodes) in a 4U form factor. Each node supports Single Socket E (LGA-4677) Supports 4th/5th Gen Intel® Xeon® Scalable Processor (Complete System Only)

Anewtech Systems Supermicro Servers Supermicro Singapore Twin-Server-Supermicro-SYS-F521E3-RTB

Four hot-pluggable systems (nodes) in a 4U form factor. Each node supports the following:

  • Single Socket E (LGA-4677) Supports 4th/5th Gen Intel® Xeon® Scalable Processor
  • C741 Chipset
    16 DIMMs Up to 4TB DDR5
    Two M.2 Internal Drives
    Network Connectivity Via AIOM (OCP 3.0 Compliant) 
    NVMe/SATA/SAS options
  • AIOM and M.2 support; 1 AIOM card support (PCIe 5.0)
  • Up to 8x SAS/SATA Hot Swap 3.5” Drives, or up to 6x NVMe Hot Swap 2.5” Drives + 2x SAS/SATA Hot Swap 3.5” Drives
Product Specification
Anewtech Systems Supermicro Servers Supermicro Singapore Twin-Server-Supermicro-SYS-F521E3-RTB-Superserver
Product SKUSuperServer SYS-F521E3-RTB (Black)
MotherboardSuper X13SEFR-A
Processor (per Node)
CPUSingle Socket E (LGA-4677)   
4th/5th Gen Intel® Xeon® Scalable Processor
CoresUp to 48/96; Up to 97.5MB Cache
NoteSupports up to 350W TDP CPUs (Aircooled)   
CPUs with high TDP (air cooled) only supported under specific conditions.
System Memory (per Node)
MemorySlot Count: 16 DIMM slots
Max Memory (2DPC): Up to 4TB 5600MT/s non-ECC DDR5
Memory Voltage1.1 V
On-Board Devices (per Node)
ChipsetIntel® C741
Network Connectivity1x 1GbE RJ45 (BMC)
IPMISupport for Intelligent Platform Management Interface v.2.0   
IPMI 2.0 with virtual media over LAN and KVM-over-LAN support
Input / Output (per Node)
SATA14 SATA (6Gbps) port(s)
LAN1 RJ45 Dedicated IPMI LAN port
USB2 USB 3.0 port(s) (2 rear)
Video1 VGA port(s)
System BIOS
Intel® Node Manager   
KVM with dedicated LAN   
IPMI 2.0   
Watch Dog   
SuperDoctor® 5
Power ConfigurationsACPI / APM Power Management
PC Health Monitoring
CPU4+1 Phase-switching voltage regulator   
Monitors for CPU Cores, Chipset Voltages, Memory.
FAN2 80 mm Heavy Duty Fans per Node   
Fans with tachometer monitoring   
Pulse Width Modulated (PWM) fan connectors   
Status monitor for speed control
TemperatureMonitoring for CPU and chassis environment
Form Factor4U
Dimensions and Weight
Height6.96" (177mm)
Width17.63" (448mm)
Depth29" (737mm)
Package15" (H) x 28.3" (W) x 42" (D)
WeightNet Weight: 150 lbs (68.04 kg)   
Gross Weight: 200 lbs (90.71 kg)
Available ColorBlack
Front Panel
ButtonsPower On/Off button   
UID button
LEDsHDD activity LED   
Network activity LEDs   
Power status LED   
Universal Information (UID) LED
Expansion Slots (per Node)
PCI-Express (PCIe)1 PCIe 5.0 x16 LP slot(s)   
1 AIOM slot(s)
Drive Bays / Storage (per Node)
Hot-swap8x 3.5" hot-swap NVMe/SATA/SAS drive bays   
(8x 2.5" NVMe hybrid)   
8x 2.5" 7mm drive bays
M.22 M.2 NVMe
System Cooling
Fans2x 8cm Fan(s)
Power Supply2000W 1U redundant power supply W73.5 x L203 x H40mm
Dimension (W x H x L)73.5 x 40 x 203 mm
AC Input1000W: 100-127Vac / 50-60Hz   
1800W: 200-220Vac / 50-60Hz   
1980W: 220-230Vac / 50-60Hz   
2000W: 220-240Vac / 50-60Hz   
2000W: 230-240Vac / 50-60Hz   
2000W: 230-240Vdc
+12VMax: 83A / Min: 0A (100Vac-127Vac)   
Max: 150A / Min: 0A (200Vac-220Vac)   
Max: 165A / Min: 0A (220Vac-230Vac)   
Max: 166A / Min: 0A (230Vac-240Vac)
12V SBMax: 3.5A / Min: 0A
Output TypeBackplanes (gold finger)
Operating Environment
Environmental Spec.Operating Temperature: 10°C ~ 35°C (50°F ~ 95°F)   
Non-operating Temperature: -40°C to 60°C (-40°F to 140°F)   
Operating Relative Humidity: 5% to 95% (8)   
Non-operating Relative Humidity: 90% to 5% (95)

4U 8-Node FatTwin® (8x 3.5” hot-swap drives per node)


Advanced Multi-Node Architecture for HPC

  • Highly configurable 4U 4-node systems
  • Single socket 5th/4th Gen Intel® Xeon® Scalable processors per node
  • 16 DIMM slots per node supporting 4TB DDR5-5600MT/s
  • Front accessible service design for cold-aisle serviceability
  • Hot-swappable drive bays – interchangeable NVMe, SAS or SATA
  • Improved thermal management with new, optimized airflow designs

Innovative Twin Architecture to Maximize Serviceability and Reliability

Advanced Multi-Node Architecture for HPC


Supermicro X13 FatTwin® systems offer an advanced multi-node 4U twin architecture with 8 nodes. Front-accessible service design allows cold-aisle serviceability, with highly configurable systems optimized for data center compute or storage density. Supports all-hybrid hot-swappable NVMe/SAS/SATA hybrid drive bays with up to 6 drives per node.

Supermicro X13 FatTwin® systems provide superior density, performance and front serviceability with 5th/4th Gen Intel® Xeon® Scalable processors per node and hotswappable, tool-less design.



4U 8-Node
6x 2.5” hot-swap drives per node



4U 4-Node
8x 3.5” hot-swap drives per node


5th Gen Intel® Xeon® Scalable Processors

  • Up to 64 cores and 385W TDP per CPU
  • Support for Intel Xeon® Max Series CPUs with High Bandwidth Memory
  • Support for PCIe 5.0, DDR5 and CXL 1.1
  • Built on the Intel® 7 process
  • Built in accelerators:
    • Intel AMX
    • Intel® Dynamic Load Balancer
    • Intel® QuickAssist
    • Technology (QAT)
    • Intel vRAN Boost

Delivering Solutions Optimized for Tomorrow’s Data Center Workloads

Complete Rack-Scale Solutions

  • Full design, integration, validation and testing services for rack-scale and multi-rack clusters
  • Complete rack-scale liquid cooling solutions developed in house

Performance and Energy Optimized

  • Enhanced thermal capacity to support the highest performing CPUs and GPUs
  • Optimized to run in high-temperature data center environments up to 40°C

Improved Security and Manageability

  • Industry-standard compliance for hardware and silicon Root of Trust (RoT)
  • Cryptographical attestation of components throughout the entire supply chain

Supports Open Industry Standards

  • The latest industry technologies including PCIe 5.0, DDR5, and CXL
  • Open Compute Project (OCP) standards including OCP 3.0, OAM, ORV2 and OSF as well as Open BMC