2U Rackmount Server. Single Socket E (LGA-4677) 4th/5th Gen Intel® Xeon® Scalable processors. Up to 350W TDP (Complete System Only)

Anewtech Systems Supermicro Singapore Supermicro Servers Industrial Rackmount Server SuperServer SYS-521C-NR Supermicro SYS-521C-NR
  • Single Socket E (LGA-4677) 4th/5th Gen Intel® Xeon® Scalable processors. Up to 350W TDP
  • Intel® C741 Chipset
  • 16 DIMMs; Supports 3DS DDR5 RDIMM. Up to 4800 MT/s
    2 PCIe 5.0 x16 FHFL + 2 PCIe 5.0 x16 FHHL (OR) 4 PCIe 5.0 x8 FHFL and 2 PCIe 5.0 x16 FHHL;
    1 PCIe 5.0 x16 AIOM NIC(OCP 3.0);
    2 PCIe 3.0 x2 NVMe M.2
  • Single AIOM with NCSI (OCP 3.0) for networking, 1 dedicated IPMI LAN
  • 12x front hot-swap 3.5" SATA3 drive bays (Optional 2 hybrid Gen5 NVMe), SAS3 with additional SAS controller card
  • Redundant Titanium 1200W Power Supplies
Product Specification
Anewtech-Systems-Rackmount-Server-Supermicro-SYS-521C-NR-SuperServer Supermicro Singapore Supermicro Servers
Product SKUsSuperServer SYS-521C-NR (Black front & sliver body)
MotherboardSuper X13SEDW-F
CPUSingle Socket E (LGA-4677)
5th Gen Intel® Xeon® / 4th Gen Intel® Xeon® Scalable processors
Core CountUp to 64C/128T; Up to 320MB Cache per CPU
NoteSupports up to 350W TDP CPUs (Air Cooled)
Max GPU CountUp to 2 double-width or 4 single-width GPU(s)
Supported GPUNVIDIA PCIe: H100,T1000,RTX A4000,L4,A40,A16,L40,RTX A6000,L40S,A30,A2
CPU-GPU InterconnectPCIe 5.0 x16 CPU-to-GPU Interconnect
GPU-GPU InterconnectPCIe
System Memory
MemorySlot Count: 16 DIMM slots/8 Channels
Max Memory (1DPC): Up to 2TB 4800MT/s ECC DDR5 RDIMM
Max Memory (2DPC): Up to 4TB 4400MT/s ECC DDR5 RDIMM
Memory Voltage1.1 V
On-Board Devices
SATASATA3 (6Gbps); RAID 0/1/5/10 support
ChipsetIntel® C741
Network ConnectivityVia AIOM & AOC
IPMISupport for Intelligent Platform Management Interface v.2.0
IPMI 2.0 with virtual media over LAN and KVM-over-LAN support
Input / Output
SATA12 SATA (6Gbps) port(s)
LAN1 RJ45 Dedicated IPMI LAN port
USB2 USB 2.0 port(s) (2 headers)
2 USB 3.2 Gen 1 port(s) (2 rear)
Video1 VGA port(s)
Serial Port1 COM Port(s) (1 rear)
System BIOS
SoftwareIPMI 2.0
KVM with dedicated LAN 
Super Diagnostics Offline 
SuperDoctor® 5
Supermicro Update Manager (SUM)
Supermicro Power Manager (SPM)
Supermicro Server Manager (SSM)
Redfish API
Power ConfigurationsACPI/APM Power Management
HardwareTrusted Platform Module (TPM) 2.0
Silicon Root of Trust (RoT) – NIST 800-193 Compliant
FeaturesCryptographically Signed Firmware
Secure Boot
Secure Firmware Updates
Automatic Firmware Recovery
Supply Chain Security: Remote Attestation
Runtime BMC Protections
System Lockdown
PC Health Monitoring
CPU8 Phase-switching voltage regulator
Monitors for CPU Cores, Chipset Voltages, Memory
FANFans with tachometer monitoring
Pulse Width Modulated (PWM) fan connectors
Status monitor for speed control
TemperatureMonitoring for CPU and chassis environment
Thermal Control for fan connectors
Form Factor2U Rackmount
Dimensions and Weight
Height3.5" (89mm)
Width17.2" (437mm)
Depth25.5" (648mm)
Package11.4" (H) x 26.7" (W) x 34.5" (D)
WeightNet Weight: 33 lbs (15 kg) 
Gross Weight: 59 lbs (26.76 kg)
Available ColorBlack front & sliver body
Front Panel
ButtonsPower On/Off
Universal Information (UID)
LEDsDrive activity
Network activity
Power status
Universal Information (UID)
Expansion Slots
PCI-Express (PCIe)4 PCIe 5.0 x8 FHFL slot(s)
2 PCIe 5.0 x16 FHHL slot(s)
1 PCIe 5.0 x16 OCP 3.0 AIOM NIC slot(s)
NoteAIOM slot shares PCIe lanes with NVMe drives. Acronyms: (FH = Full Height, LP = Low Profile, FL = Full Length, HL = Half Length)
Drive Bays / Storage
Drive Bays12x 3.5" NVMe/SATA/SAS drive bays (2x 3.5" NVMe hybrid)
M.22x PCIe 3.0 x 2M-key, 2280, 22110
System Cooling
Fans3 heavy duty PWM 80x80x38mm Fan(s)
Power Supply2x 1200W Redundant Titanium Level power supplies
Dimension (W x H x L)76 x 40 x 336 mm
AC Input1000W: 100-127Vac / 50-60Hz 
1200W: 200-240Vac / 50-60Hz 
1200W: 200-240Vdc / 50-60Hz (for CCC only)
+12VMax: 83A / Min: 0A (100Vac-127Vac)
Max: 100A / Min: 0A (200Vdc-240Vdc)
Max: 100A / Min: 0A (200Vac-240Vac)
5V SBMax: 4A / Min: 0A
Output TypeBackplanes (gold finger)
Operating Environment
Environmental Spec.Operating Temperature: 10°C ~ 35°C (50°F ~ 95°F) 
Non-operating Temperature: -30°C to 60°C (-22°F to 140°F) 
Operating Relative Humidity: 8% to 80% (non-condensing) 
Non-operating Relative Humidity: 8% to 90% (non-condensing)
Video Delivery Workloads

2U CloudDC UP 
All-in-one Platform for Cloud Data Centers


Benefits & Advantages

  • UP architecture for maximum performance with a single CPU
  • Superior thermal design - Supports maximum power/performance CPUs and GPUs
  • Flexible I/O and storage options supporting convenient serviceability with tool-less brackets and hot-swap drive bays

Key Features

  • Up to 6 GPUs
  • Single 4th Gen Intel® Xeon® Scalable processor
  • Optimized thermal capacity and airflow to support CPUs up to 350W and GPUs up to 350W with air cooling
  • Supports PCIe 5.0, DDR5 and Compute Express Link (CXL) 1.1+
  • 16 DIMM slots DDR5
  • Advanced I/O Module (AIOM) for flexible networking options (OCP 3.0 compatible)
Anewtech-Systems-Supermicro-GPU-Server-SYS-521C-NR Supermicro Singapore Supermicro Servers

High Density Cloud Storage Platform for Cloud Data Centers

High-density, Tool-less Mechanical Design for Rapid Cloud Deployment and Easy Maintenance


Ultimate flexibility on I/O and storage for maximum data throughput. Supermicro X13 CloudDC systems are designed for convenient serviceability with tool-less brackets, hot-swap drive trays and redundant power supplies that ensure a rapid deployment and more efficient maintenance in data centers. High-efficiency Titanium Level redundant power supplies provide resiliency and lower carbon footprint.

Rich Security Features include Intel® SGX, TPM 2.0, signed firmware, Silicon Root of Trust, Secure Boot, System Erase, Runtime FW protection, FIPS Compliance and Trusted Execution Environment.



2U/DP with 12x 3.5” NVMe/ SAS/SATA drives and 6x PCIe 5.0 slots



2U/UP with 12x 3.5” SAS/ SATA drives, 2x hybrid NVMe drives and 6x PCIe 5.0 slots


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