| Part No. | R940 |
| Manufacturer | Dell Technologies |
| End of Life? | No |
| Rack Units | 3U |
| Depth | 777.05 |
| CPU Socket(s) | Up to four Intel® Xeon® Scalable processors, up to 28 cores |
| Memory Slot(s) | 48 DDR4 DIMM slots, Supports RDIMM /LRDIMM, up to 2666MT/s, 6TB max Up to 12 NVDIMM, 192 GB Max Supports registered ECC DDR4 DIMMs only |
| Drive Bays | Front drive bays: Up to 24 x 2.5” SAS/SATA (HDD/SSD) with up to 12 NVMe PCIe SSD, max 122TB |
| Supported OS | Canonical® Ubuntu® LTS Citrix® XenServer® Microsoft Windows Server® with Hyper-V Red Hat® Enterprise Linux SUSE® Linux Enterprise Server VMware® ESXi |
| USB Port(s) | Front: 2x USB 3.0, dedicated IDRAC Direct USB Rear: 2x USB 3.0 |
| PCI Slot(s) | Up to 13 x Gen3 slots, (3 x8 + 10 x16) |
| Serial Ports | Rear: 1x serial port |