| Part No. | R550 |
| Manufacturer | Dell Technologies |
| End of Life? | No |
| Preceeded By | r540 |
| Rack Units | 2U |
| Depth | 707.74 |
| CPU Socket(s) | Up to two 3rd Generation Intel® Xeon® Scalable processors, up to 20 cores per processor |
| Memory Slot(s) | 16 DDR4 DIMM slots, Supports RDIMM /LRDIMM, speeds up to 2933MT/s, 512GB max |
| Drive Bays | Front drive bays: Up to 8x 3.5” SAS/SATA HDD max 120TB Rear drive bays: Up to 2 x 3.5 SAS/SATA HDD Optional DVD-ROM, DVD+RW |
| 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: 1x USB 2.0, dedicated IDRAC Direct USB Rear: 2x USB 3.0 |
| Serial Ports | Rear: 1x serial port |