PowerEdge R940xa Rack Server
Extreme acceleration for business insights


Drive GPU database acceleration for business-critical applications with a powerful, four-socket server. Scale capacity with large internal storage.
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
Processor
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®
Bezel
Optional LCD bezel or security bezel
Dimensions & Weight
Height : 174.3 mm (6.87 inches)
Width : 441.16 mm (17.4”)
Depth : 835.9mm (32.9”)
Weight : 56.0kg (123.5lbs.)
Memory*
DIMM Speed
Up to 2933MT/s
Memory Type
- RDIMM
- LRDIMM
- NVDIMM
- 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
- RDIMM 3TB
- LRDIMM 6TB
- NVDIMM 384GB
- DCPMM 12.28TB (15.36TB with LRDIMM)
Management
Embedded / At-the-Server
- iDRAC9
- iDRAC RESTful API with Redfish
- iDRAC Direct
- Quick Sync 2 BLE/wireless module
Consoles
- OpenManage Enterprise
- OpenManage Power Center
Mobility
OpenManage Mobile
Tools
- Dell EMC RACADM CLI
- Dell EMC Repository Manager
- Dell EMC System Update
- Dell EMC Server Update Utility
- Dell EMC Update Catalogs
- iDRAC Service Module
- IPMI Tool
- 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
Regulatory
- Product Safety, EMC and Environmental Datasheets
- Dell Regulatory Compliance Home Page
- Dell and the Environment
Storage Controllers
Internal Controllers
PERC H730P, H740P, H330, HBA330
External Controllers
H840, 12 Gbps SAS HBA
Software RAID
S140
Internal Boot
Boot Optimized Storage Subsystem (BOSS):
HWRAID 2 x M.2 SSDs 240GB, 480GB
Internal Dual SD Module
Security
- 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
Accelerators
- Up to four doublewidth GPUs
- Up to four double-width or 8 single-width FPGAs
Storage
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
Power Supplies
- 1100W Platinum
- 1100W 240VDC Platinum*
- 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
Slots
PCle
12 x Gen3 slots (6 x 16 or 2 x 16 + 10 x 8)
Video Card
1 x VGA
Form Factor
4U Rack Server
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.
Ports
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
Other PRODUCTS
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