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Silver 2U rack server with front drive bays and LED indicators

Supermicro

Supermicro SYS-521C-NR-G1 2U rack server, Xeon Silver 4510 12-core, 128GB DDR5, 1.92TB NVMe

SKU CH-C9QK-RW4S3 MPN SYS-521C-NR-G1

2U rack server with a 12-core Xeon Silver 4510 at 2.4 GHz, 128 GB DDR5-5600, 1.92 TB NVMe storage, dual 10 GbE RJ45 networking and redundant 1200 W titanium power supplies

  • WorkloadGeneral Purpose Server
  • TypeRack
  • Rack Height2U
  • LEDsDrive activity Network activity Power status Universal Infor
  • Hot-swap Fans3 heavy duty PWM 80x80x38mm Fan(s)
  • SecurityTrusted Platform Module (TPM) 2.0 Silicon Root of Trust (RoT
  • 12-core Xeon 4510 handles parallel workloads at 2.4 GHz
  • 128 GB DDR5-5600 ECC memory scales to 4 TB capacity
  • 92 TB NVMe storage delivers fast data access
  • Dual 10 GbE RJ45 ports support high-throughput networking
  • TPM 2.0 with Silicon Root of Trust secures firmware integrity

Purpose-built server for general workloads

The Supermicro SYS-521C-NR-G1 is a 2U rack server designed for general-purpose workloads. It ships with a single Intel Xeon Silver 4510 processor running at 2.40 GHz with 12 cores and 30MB cache. The system includes 128GB of DDR5 5600 ECC memory installed across 16 DIMM slots and 1.92TB of NVMe storage configured as two 960GB M.2 drives.

2U chassis with redundant power and hot-swap cooling

The rackmount chassis provides three hot-swap 80x80x38mm PWM fans for continuous airflow. Dual 1200W Titanium-level power supplies deliver redundant power for high availability. A single dual-port 10GbE RJ45 controller based on the X710-AT2 handles network connectivity. Security features include TPM 2.0, Silicon Root of Trust compliant with NIST 800-193, cryptographically signed firmware, secure boot, and automatic firmware recovery.

Single-socket design limits CPU expansion

Only one LGA 4677 processor is installed and the platform supports a maximum of one CPU. Buyers who need dual-socket performance or more than 12 cores in a single server should consider other platforms. Memory can scale to 4TB using DDR5 RDIMMs, but the installed 128GB configuration fixes the starting point for immediate deployment.

Highlights

  • 12-core Xeon 4510 handles parallel workloads at 2.4 GHz
  • 128 GB DDR5-5600 ECC memory scales to 4 TB capacity
  • 92 TB NVMe storage delivers fast data access
  • Dual 10 GbE RJ45 ports support high-throughput networking
  • TPM 2.0 with Silicon Root of Trust secures firmware integrity

Specifications

BrandSUPERMICRO
SeriesSuperServer
ModelSYS-521C-NR-G1
WorkloadGeneral Purpose Server
TypeRack
Rack Height2U
LEDsDrive activity
Network activity
Power status
Universal Information (UID)
Hot-swap Fans3 heavy duty PWM 80x80x38mm Fan(s)
SecurityTrusted Platform Module (TPM) 2.0
Silicon Root of Trust (RoT) - NIST 800-193 Compliant
Cryptographically Signed Firmware
Secure Boot
Secure Firmware Updates
Automatic Firmware Recovery
Supply Chain Security: Remote Attestation
Runtime BMC Protections
System Lockdown
CPU TypeIntel Xeon Silver
CPU Speed4510 (2.40 GHz)
CPU SocketLGA 4677
Number of CPU Cores12-Core Processor
Cache Memory30MB Cache
# of Processors Installed1
MAX Processors1
Installed Memory Size128GB
Memory TypeDDR5 5600
Max Memory Capacity4TB
Memory FeaturesMax Memory (1DPC): Up to 2TB 5600MT/s ECC DDR5 RDIMM
Max Memory (2DPC): Up to 4TB 4400MT/s ECC DDR5 RDIMM
Number of Memory Slots16
SSD (Installed)1.92TB
Ethernet ControllerSupermicro 10-Gigabit X710-AT2 (2 x RJ45) Ethernet Network Adapter
Expansion Slots4 PCIe 5.0 x8 FHFL slots
2 PCIe 5.0 x16 FHHL slots
1 PCIe 5.0 x16 AIOM slot (OCP 3.0 compatible)
Expansion Bays12 front hot-swap 3.5" SAS*/SATA drive bays
2 M.2 PCIe 3.0 x2 NVMe slots (M-key 2280/22110)
Power Characteristics2x 1200W Redundant (1 + 1) Titanium Level (96%) power supplies
TemperatureOperating Temperature: 10°C to 35°C (50°F to 95°F)
Non-operating Temperature: -30°C to 60°C (-22°F to 140°F)
HumidityOperating Relative Humidity: 8% to 80% (non-condensing)
Non-operating Relative Humidity: 8% to 90% (non-condensing)
Dimensions3.5" x 17.2" x 25.5"
Weight33 lbs.
Shipping weight27.22 kg
Package size889 × 635 × 279 mm

Questions about this item

What network speed does the dual 10GbE RJ45 interface cap at in practice?

The onboard X710-AT2 controller provides two RJ45 ports that each negotiate up to 10 Gb/s over twisted-pair copper.

What rack depth and rail kit does the 2U chassis require to mount?

The 2U form factor fits a standard 19-inch rack; sliding rails must support the chassis depth and the three 80×80×38 mm hot-swap fans at the rear.

How is the DDR5-5600 memory installed, and which slot rule do builders often miss?

Populate the 16 RDIMM slots one DIMM per channel first to reach 2 TB at 5600 MT/s; adding a second DIMM per channel drops speed to 4400 MT/s.

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