PowerEdge R660XS Rack Server

Best choice in balanced and dense compute for the most popular IT applications

The new Dell PowerEdge R660xs is a 1U, two-socket rack server. Buy the best fit in dense performance with this purpose-built 1U system. Focused on delivering the latest technology to power the most popular applications and workloads used by businesses today, including virtualization, scale out-database and high performance compute. All delivered in a thoughtfully crafted platform that will provide dense compute that fits in your current infrastructure.

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Tech Specs & Customization


  • Up to two 4th Generation Intel Xeon Scalable processors
  • Up to 32 cores per processor



  • 16 DDR5 DIMM slots
  • Supports RDIMM
  • 1 TB max memory
  • Speeds up to 4800 MT/s
  • Supports registered ECC DDR5 DIMMs only


Storage Controllers:

  • Internal Controllers: PERC H965i, PERC H755, PERC H755N, PERC H355, HBA355i
  • Internal Boot: Boot Optimized Storage Subsystem (BOSS-N1): HWRAID 1, 2 x M.2 NVMe SSDs (cold swap) or USB
  • External HBA (non-RAID): HBA355e
  • Software RAID: S160


Drive Bays:

Front bays:

  • 0 drive bay
  • Up to 4 x 3.5-inch SAS/SATA (HDD/SSD) max 80 TB
  • Up to 8 x 2.5-inch SAS/SATA/NVMe (HDD/SSD) max 122.88 TB
  • Up to 10 x 2.5-inch SAS/SATA/NVMe (HDD/SSD) max 153.6 TB

Rear bays:

  • Up to 2 x 2.5-inch SAS/SATA/NVMe (HDD/SSD) max 15.2 TB
  • Hot swap redundant


Power Supplies:

  • 1800 W Titanium 200—240 VAC or 240 VDC
  • 1400 W Platinum 100—240 VAC or 240 VDC
  • 1400 W Titanium 277 VAC or 336 VDC
  • 1100 W Titanium 100—240 VAC or 240 VDC
  • 1100 W -(48-60) VDC
  • 800 W Platinum 100—240 VAC or 240 VDC
  • 700 W Titanium 200—240 VAC or 240 VDC
  • 600 W Platinum 100—240 VAC or 240 VDC


Cooling Options:

  • Air cooling



  • Standard (STD) fans / High performance Gold (VHP) fans
  • Up to 7 hot-swappable fans


Dimensions and Weight:

  • Height – 42.8 mm (1.68 inches)
  • Width – 482 mm (18.97 inches)
  • Depth – 748.79 mm (29.85 inches) with bezel 712.95 mm (28.05 inches) without bezel
  • Weight – 19.45 Kg (55.33 pounds)


Form Factor:

  • 1U rack server


Embedded Management:

  • iDRAC9
  • iDRAC Direct
  • iDRAC RESTful API with Redfish
  • iDRAC Service Module
  • Quick Sync 2 wireless module



  • Optional LCD bezel or security bezel


OpenManage Software:

  • CloudIQ for PowerEdge plug-in
  • OpenManage Enterprise
  • OpenManage Enterprise Integration for VMware vCenter
  • OpenManage Integration for Microsoft System Center
  • OpenManage Integration with Windows Admin Center
  • OpenManage Power Manager plugin
  • OpenManage Service plugin
  • OpenManage Update Manager plugin



  • OpenManage Mobile


OpenManage Integrations:

  • BMC Truesight
  • Microsoft System Center
  • OpenManage Integration with ServiceNow
  • Red Hat Ansible Modules
  • Terraform Providers
  • VMware vCenter and vRealize Operations Manager



  • Cryptographically signed firmware
  • Data at Rest Encryption (SEDs with local or external key mgmt)
  • Secure Boot
  • Secure Erase
  • Secured Component Verification (Hardware integrity check)
  • Silicon Root of Trust
  • System Lockdown (requires iDRAC9 Enterprise or Datacenter)
  • TPM 2.0 FIPS, CC-TCG certified, TPM 2.0 China NationZ


Embedded NIC:

  • 2 x 1 GbE LOM card


Network Options:

  • 1 x OCP card 3.0 (optional)



Front Ports:

  • 1 x iDRAC Direct (Micro-AB USB) port
  • 1 x USB 2.0
  • 1 x VGA

Internal Ports:

  • 1 x USB 3.0 (optional)

Rear Ports:

  • 1 x Dedicated iDRAC Ethernet port
  • 1 x USB 2.0
  • 1 x USB 3.0
  • 1 x VGA
  • 1 x Serial (optional)



  • 1 CPU Configuration: Up to 2 PCIe slots (1 x16 Gen4 + 1 x8 Gen5)
  • 2 CPU Configuration: Up to 3 PCIe Gen4 slots (1 x16 Gen4 + 2 x8 Gen4) or up to 2 PCIe Gen5 slots (1 x16 Gen5 + 1 x8 Gen5)


Operating System and Hypervisors:

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

For specifications and interoperability details, see Dell.com/OSsupport.


OEM-ready version available:

From bezel to BIOS to packaging, your servers can look and feel as if they were designed and built by you. For more information, visit Dell.com -> Solutions -> OEM Solutions.

Product Details

Easily configurable

  • Add up to two 4th generation Intel® Xeon® Scalable processors with up to 32 cores per socket for faster performance

  • Accelerate in-memory workloads with up to 16 DDR5 RDIMMS up to 4800 MT/sec

  • Improve data throughput and reduce latency with support up to 5 I/O devices (up to 3 PCIe slots, 1 OCP 3.0 networking slot, and 1 dedicated PERC slot)

  • Storage options include up to 4x 3.5” HDDs/SSDs; or up to 10x 2.5” HDDs/SSDs/NVMe

A Breeze to Cool

  • Thoughtfully designed to fit in your current air-cooled infrastructure

  • Alleviate the worry about expensive liquid cooling retrofitting to your data center

  • Sychronize your workload needs with a tailored performance configuration that is air-cooled

  • Minimize the carbon footprint of your data center by better matching the system power consumption with anticipated workload requirements

Cyber Resilient Architecture for Zero Trust IT Environment & Operations

Security is integrated into every phase of the PowerEdge lifecycle, including protected supply chain and factory-to-site integrity assurance. Silicon-based root of trust anchors end-to-end boot resilience while Multi-Factor Authentication (MFA) and role-based access controls ensure trusted operations. configurations (up to 3 x PCIe slots) with interchangeable components that seamlessly integrate to address customer needs over time.

Increase Efficiency and Accelerate Operations With Autonomous Collaboration

The Dell OpenManage™ systems management portfolio delivers a secure, efficient, and comprehensive solution for PowerEdge servers. Simplify, automate and centralize one-to-many management with the OpenManage Enterprise console and iDRAC.


From recycled materials in our products and packaging, to thoughtful, innovative options for energy efficiency, the PowerEdge portfolio is designed to make, deliver, and recycle products to help reduce the carbon footprint and lower your operation costs. We even make it easy to retire legacy systems responsibly with Dell Technologies Services.

PowerEdge R660XS

The Dell PowerEdge R660xs offers compelling performance in a purpose-built system with the latest PCIe Gen 5 bandwidth and storage to support:

  • Virtualization / Cloud
  • Scale-Out Database
  • High Performance Compute