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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

  • ProcessorIntel Xeon Silver
  • Installed RAM128 GB
  • Installed SSD1.92 TB
  • Processor core count12-Core Processor
  • Type of memoryDDR5 5600
  • Processor socketLGA 4677
  • 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.

How it compares

Measured against everything we stock in Rack & Tower Servers, at today’s prices. Recalculated every night.

Price $3,565.99
Pricier than about 70% of the 17,641 comparable items (median $1,910.99).
Installed RAM 128 GB
Typical for this category: the median of 15,103 items is 128 GB.
Processor core count 12-Core Processor
Lower than about 60% of the 7,955 comparable items (median 16).

New to this? Buying server hardware with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSUPERMICRO
Product lineSuperServer
Model nameSYS-521C-NR-G1
Target workloadGeneral Purpose Server
Product typeRack
Processor
ProcessorIntel Xeon Silver
Processor core count12-Core Processor
Processor socketLGA 4677
Processor speed4510 (2.4 GHz)
Processor cache30 MB Cache
Installed CPUs1
Max supported CPUs1
Memory
Installed RAM128 GB
Type of memoryDDR5 5600
Maximum RAM capacity4 TB
Memory slot count16
Storage
Installed SSD1.92 TB
Drive bays12 front hot-swap 3.5 in SAS*/SATA drive bays
2 M.2 PCIe 3.0 x2 NVMe slots (M-key 2280/22110)
Connectivity
Network controllerSupermicro 10-Gigabit X710-AT2 (2 x RJ45) Ethernet Network Adapter
Ports & slots
Expansion card 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)
Power
Power supply2x 1200 W Redundant (1 + 1) Titanium Level (96%) power supplies
Size & build
Rack height2U
Hot-swappable fans3 heavy duty PWM 80 × 80 × 38 mm Fan(s)
Product dimensions3.5 in × 17.2 in × 25.5 in
Product weight33 lb (15 kg)
Shipping weight27.22 kg
Package size889 × 635 × 279 mm
Environment & compliance
Temperature rangeOperating Temperature: 10 °C to 35 °C (50 °F to 95 °F)
Non-operating Temperature: -30 °C to 60 °C (-22 °F to 140 °F)
Humidity rangeOperating Relative Humidity: 8% to 80% (non-condensing)
Non-operating Relative Humidity: 8% to 90% (non-condensing)
More details
Indicator lightsDrive activity
Network activity
Power status
Universal Information (UID)

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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