Dell PowerEdge R940xa Rack Server


Rapidly transform data insights into business outcomes

The PowerEdge R940xa accelerates applications to deliver real-time decisions. The R940xa combines four CPUs with four GPUs in a powerful 1:1 ratio to drive database acceleration. With up to 6TB of memory and four-socket performance, the R940xa delivers consistent and fast response times. Scale on-premises capacity to offset rising cloud fees and security risks.

Ideal workloads:

  • Compute intensive applications
  • Machine learning and artificial intelligence
  • GPU database acceleration

Dynamically scale resources as your workloads evolve

The 4U R940xa allows you to flexibly adapt to changing business demands. Large internal storage gives you the space to grow as your databases increase in complexity and size.

  • Increase performance with up to four 2nd Generation Intel® Xeon® Scalable processors and up to 112 processing cores
  • Choose up to four double-width GPUs or up to four double-width or eight single-width FPGAs to accelerate workloads
  • Address large data sets with up to 48 DIMMs (24 of which can be DCPMMs) and up to 15.36TB of memory
  • Scale capacity with up to 32 2.5” HDDs/SSDs, including up to four NVME drives
  • Expand quickly with up to 12 PCIe slots for external connections

Streamline IT operations across your datacenter

Reduce the time and effort required to manage IT environments with intelligent automation.

  • Automate efficiency with unified system management from OpenManage Enterprise, embedded iDRAC9, and SupportAssist
  • Leverage existing investments in management consoles with OpenManage Integrations for VMware vCenter, and Microsoft System Center, or Connections for Nagios
  • Simplify deployment utilizing server profile configuration to fully deploy and prep server
  • Resolve issues with up to 72% less IT effort using automated proactive and predictive technology from ProSupport Plus and SupportAssist.*

Deliver comprehensive data center protection and maximum uptime

Dell EMC provides a cyber-resilient architecture with security embedded into every server to protect your data. High availability features help facilitate continuous operations.

  • Protect server configuration and firmware from malicious changes with the Configuration Lock-down feature
  • Use System Erase for local storage devices to ensure data privacy when you repurpose or retire servers
  • Take control of your firmware consoles with embedded authentication that is designed to allow only properly signed updates to run
  • Help ensure uptime with hot-pluggable drives and power supplies


Up to four 2nd Generation Intel® Xeon® Scalable processors with up to 28 cores per processor

Operating System

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


Up to four doublewidth GPUs
Up to four double-width or 8 single-width FPGAs


DIMM Speed
Up to 2933MT/s

Memory Type
DCPMM (Intel® Optane™ DC persistent memory)

Memory Module Slots
48 DDR4 DIMM slots (12 NVDIMM or 24 DCPMM slots only)
Supports registered ECC DDR4 DIMMs only

Maximum RAM
DCPMM 12.28TB (15.36TB with LRDIMM)


Front Bays
Up to 8 2.5” SAS SATA (HDD/SSD) max 61.44TB
Up to 24 x 2.5” SAS SATA (HDD/SSD) max 184.32TB
Up to 32 x 2.5″ SAS/SATA (HDD/SSD) with up to 4 NVME PCIe SSD max 245.76TB

Storage Controllers

Internal Controllers
PERC H730P, H740P, H330, HBA330

External Controllers
H840, 12 Gbps SAS HBA

Software RAID

Internal Boot
Boot Optimized Storage Subsystem (BOSS):
HWRAID 2 x M.2 SSDs 240GB, 480GB

Internal Dual SD Module


Cryptographically signed firmware
Secure Boot
Secure Erase
Silicon Root of Trust
System Lockdown (requires OpenManage Enterprise)
TPM 1.2/2.0, TCM 2.0 optional


Embedded / At-the-Server
iDRAC RESTful API with Redfish
iDRAC Direct
Quick Sync 2 BLE/wireless module

OpenManage Enterprise
OpenManage Power Center

OpenManage Mobile

Dell Repository Manager
Dell System Update
Dell Server Update Utility
Dell Update Catalogs
iDRAC Service Module
OpenManage Server Administrator
OpenManage Storage Services

OpenManage Integrations
BMC Truesight
Microsoft® System Center
Red Hat® Ansible® Modules
VMware® vCenter

OpenManage Connections
IBM Tivoli® Netcool/OMNIbus
IBM Tivoli® Network Manager IP Edition
Micro Focus Operations Manager I
Nagios® Core
Nagios® XI

Power Supplies

1100W Platinum
1100W 240VDC Platinumi
1600W Platinum
2000W Platinum
2400W Platinum
1100W -48VDC
Hot plug power supplies with full redundancy option
Up to 6 hot plug fans with N +1 redundancy


Network Options
4 x 1GbE
4 x 10GbE
2 x 10GbE + 2 x 1GbE
2 x 25GbE

Front Ports
1 x Dedicated iDRAC Direct Micro-USB
2 x USB 2.0
1 x USB 3.0 (optional offered only on the 8-drive configuration)
1 x VGA

Rear Ports
1 x Dedicated iDRAC port
1 x Serial
2 x USB 3.0
1 x VGA

Internal Ports
1 x USB 3.0


12 x Gen3 slots (6 x 16 or 2 x 16 + 10 x 8)

Video Card
1 x VGA


Optional LCD bezel or security bezel

Form Factor

4U Rack Server

Dimensions & Weight

174.3 mm (6.87 inches)

441.16 mm (17.4”)

835.9mm (32.9”)

56.0kg (123.5lbs.)

Recommended Support

Choose Dell ProSupport Plus for critical systems or Dell ProSupport for premium hardware and software support for your PowerEdge solution. Consulting and deployment offerings are also available. Contact your Dell representative today for more information. Availability and terms of Dell Services vary by region.