General Details

Maximize performance density with the PowerEdge C6520, a 2U four-node server built for high-performance computing (HPC), hyper-converged infrastructure (HCI), and scale-out workloads. Powered by up to two 3rd Generation Intel® Xeon® Scalable processors per node, the C6520 delivers exceptional compute power in a compact footprint.
Each node of the PowerEdge C6520 supports up to 16 DDR4 DIMM slots with speeds up to 3200 MT/s and a maximum memory capacity of 1TB, enabling it to handle memory-intensive workloads with ease. PCIe Gen4 support ensures high bandwidth for accelerators, networking, and storage controllers.
The C6520 chassis can accommodate various drive configurations, including up to 6 x 2.5” SAS/SATA/NVMe drives per node, providing the flexibility and performance needed for both compute-focused and storage-heavy environments.
Dell EMC OpenManage systems management simplifies system administration across C6520 deployments with intelligent automation tools that streamline provisioning, monitoring, and updating. With features like iDRAC9 and OpenManage Enterprise, IT operations are more efficient and secure.
Built with a cyber-resilient architecture, the PowerEdge C6520 integrates robust security features including silicon root of trust, secure boot, signed firmware, system lockdown, and drift detection—ensuring infrastructure integrity from deployment to retirement.

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Dell PowerEdge C6520 Key Features

Key Features

Increase efficiency and accelerate operations with autonomous collaboration

The Dell OpenManage systems management portfolio helps streamline administration of the PowerEdge C6520 with advanced automation and monitoring features. From deployment to retirement, OpenManage tools simplify lifecycle management in multi-node, high-density environments.

Key capabilities such as telemetry streaming, thermal management, and Redfish-compliant RESTful APIs enhance visibility and control over server health. These features enable IT teams to proactively address performance bottlenecks and optimize system resources across all four C6520 compute nodes.

Intelligent automation within OpenManage reduces manual intervention and supports faster response times. By automating repetitive tasks such as firmware updates and configuration compliance, IT personnel can focus on strategic initiatives that support business agility and innovation.

Integrated change management tools and ecosystem integrations with Microsoft, VMware, Ansible, and ServiceNow ensure seamless orchestration across diverse infrastructures. The C6520 fits directly into this ecosystem, enabling full-stack observability and responsive workload management.

Protect your data assets and infrastructure with proactive resilience

The Dell PowerEdge C6520 is built with a cyber-resilient architecture that safeguards workloads from edge to core. Its platform security begins with a silicon root of trust and secure boot features that ensure only authorized code is executed.

Each node leverages cryptographically signed firmware and system lockdown capabilities to prevent unauthorized changes, helping maintain system integrity even in large-scale or multi-tenant deployments.

Firmware and configuration drift detection tools allow system administrators to identify deviations from the known-good baseline and take corrective actions quickly.

When servers are retired or repurposed, Dell’s System Erase feature allows for complete, secure data wiping across all connected drives and memory, simplifying data compliance and protecting against data leakage.

With FIPS-certified TPM options and secure supply chain processes, the PowerEdge C6520 ensures trusted infrastructure from procurement through operational life.

Intuitive Cloud Operating Experience: Simple, Self-service, and Automated

Designed for dense computing environments, the Dell PowerEdge C6520 fits up to four independent dual-socket compute nodes in a single 2U chassis, delivering maximum performance per square foot for data center and cloud-native workloads.

Each node supports up to two 3rd Gen Intel® Xeon® Scalable processors with up to 40 cores per socket and 16 DDR4 DIMM slots, enabling powerful compute capability for applications such as high-performance computing (HPC), hyperconverged infrastructure (HCI), and virtualization.

The C6520 supports PCIe Gen4 I/O for increased bandwidth to storage and accelerator devices, meeting the demands of modern workloads. It can also be configured with up to six 2.5" NVMe/SAS/SATA drives per node for flexible storage options.

Ideal for hyperscale deployments, the C6520 enables organizations to rapidly scale compute infrastructure while maintaining simplified node serviceability, optimal airflow, and energy efficiency within dense rack environments.

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Dell PowerEdge C6520 Specifications

Processor Up to two 3rd Generation Intel® Xeon® Scalable processors per node
Up to 40 cores per processor
Up to 4 nodes per 2U chassis

Operating System Canonical Ubuntu Server LTS
VMware ESXi
Microsoft Windows Server with Hyper-V
Red Hat Enterprise Linux
SUSE Linux Enterprise Server

Chipset Intel® C620A series

Memory DIMM Speed: Up to 3200 MT/s
16 DDR4 DIMM slots per node
Up to 1TB memory per node

Memory Type RDIMM / LRDIMM

Maximum RAM Up to 1TB per node

Storage Up to 6 x 2.5" SAS/SATA/NVMe drives per node
Supports hot-plug drives

Storage Controllers Internal: PERC H745, HBA355i
External: HBA355e

Software RAID S150

Internal Boot Boot Optimized Storage Subsystem (BOSS-N1):
HWRAID with dual M.2 SSDs (240GB/480GB)

Security Silicon Root of Trust
Cryptographically signed firmware
Secure Boot
System Lockdown (requires iDRAC9 Enterprise)
Secure Erase
TPM 1.2/2.0 FIPS, CC-TCG certified

Management Embedded: iDRAC9
iDRAC Service Module
iDRAC Direct

Consoles OpenManage Enterprise
OpenManage Power Manager
SupportAssist
Update Manager

Mobility OpenManage Mobile

Tools Redfish RESTful API
RACADM CLI
IPMI 2.0
System Update Utility
Repository Manager

OpenManage Integrations Microsoft® System Center
VMware® vCenter / vRealize
RedHat® Ansible® Modules
BMC Truesight

OpenManage Connections IBM Tivoli® Netcool/OMNIbus
Micro Focus® Operations Manager
Nagios® Core / XI

Power Supplies 1100W, 1400W, or 2400W Platinum power supplies (shared across chassis)

Ports OCP 3.0 mezzanine NIC options per node
Optional dual-port 1GbE/10GbE

Front Ports Per chassis: Identification button, LED status indicators

Rear Ports iDRAC dedicated RJ-45
1 x USB 3.0
1 x Mini DisplayPort

Internal Ports Per node: 1 x USB 3.0 (optional)

Slots Per node: 1 x PCIe Gen4 low-profile slot

Bezel Optional security bezel (chassis level)

Form Factor 2U shared chassis supporting up to 4 compute sleds

Dimensions & Weight Height: 86.8 mm (3.42")
Width: 448 mm (17.63")
Depth: 828.57 mm (32.63")
Weight (maximum): 44.7 kg (98.5 lb)

Rack Support ReadyRails sliding rails with optional cable management arm

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Refurbished Dell PowerEdge C6520 Modular Enclosure

High-density modular server chassis designed for up to four Dell PowerEdge C6520 compute nodes. Supports 3rd Gen Intel Xeon Scalable processors, DDR4 memory, NVMe/SAS/SATA storage options per node, and integrated with OpenManage for scalable, high-performance data center deployments. Ideal for HPC, cloud, and virtualization workloads. Comes with 1-Year TekShield Maintenance and Support, with options to extend up to 5 years

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Dell PowerEdge C6520 Server

The Dell PowerEdge C6520 is a high-density, 2U server chassis that supports up to four independent dual-socket server nodes, each powered by 3rd Generation Intel® Xeon® Scalable processors. It is optimized for high-performance computing (HPC), virtualization, and cloud-scale deployments. Each node supports up to 2TB of DDR4 memory, PCIe Gen4 expansion, and multiple drive configurations, offering excellent compute performance in a compact footprint.

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