The Dell PowerEdge R6615 is a 1U single-socket rack server built to maximize value per dollar in enterprise data centers, delivering solid performance and flexible, low-latency storage through air-cooled or Direct Liquid Cooling (DLC) configurations. It supports breakthrough innovation for both traditional and emerging workloads — including dense virtualization, hyper-converged infrastructure (HCI), and Network Function Virtualization (NFV) with OpenStack for Telco — combining top-tier performance, density, and optional acceleration.
The R6615 runs on a single 4th Generation AMD EPYC 9004 Series processor with up to 128 cores, paired with 12 DIMMs of DDR5 memory — registered ECC DDR5 DIMMs only. An optional BOSS-N1 boot device is also available, supporting hardware RAID for 2x M.2 NVMe SSDs.
Chassis Options
There are 5 chassis options in this R6615 server with 2 rear drive bay options.
Front bays:
- Up to 4x 3.5" SAS/SATA (HDD/SSD) | Max: 80TB
- Up to 8x 2.5" NVMe (SSD) | Max: 122.88TB
- Up to 10x 2.5" SAS/SATA/NVMe (HDD/SSD) | Max: 153.6TB
- Up to 14x EDSFF E3.S Gen5 NVMe (SSD) | Max: 107.52TB
- Up to 16x EDSFF E3.S Gen5 NVMe (SSD) | Max: 122.88TB
Rear bays:
- Up to 2x 2.5" SAS/SATA (HDD/SSD) | Max: 30.72 TB
- Up to 2x EDSFF E3.S Gen5 NVMe (SSD) | Max: 15.36 TB
Processor
One AMD® EPYC 4th Generation Genoa (SP5) processor 9004 Series with up to 128 cores processor.
Processor compatibility varies by chassis, largely due to differences in cooling support. Check the Thermal Restriction Matrix in the spec manual for full details.
Cooling Options
Heatsink & Fans
Up to 4 sets of dual-fan hot-plug modules handle cooling, and this system also supports Direct Liquid Cooling (DLC).
| Item |
Type |
Solution Strategy |
| Fan |
Standard Fan (STD) |
All 3.5" HDD x 4 Configurations |
| High Performance Gold Fan (HPR Gold) |
for Air Cooling |
for Liquid Cooling |
Either one matched in non 3.5-inch Chassis: 2.5-inch x 10 configuration 2.5-inch x 8 and No BP configurations DDR5 RDIMM >128 GB Rear Drives GPU |
3.5-inch HDD x 4 config. w/ LC part in QB DDR5 RDIMM >128 GB Rear Drives GPU |
| CPU HSK |
1U EXT. HSK. |
All air cooling configurations. |
| DLC Module |
For all CPU operation at DLC configurations. |
| Shroud |
Air Shroud |
All air cooling configurations require an air shroud. |
| Air Shroud for 1DPC |
New air shroud be required at all air cooling config. w/ 1DPC MB. |
| OCP Shroud |
System with OCP card but without riser 2 implemented. |
| Blank |
DIMM Blank |
When CPU > 240 W installed, except DLC configurations. |
Memory Options
12 DDR5 DIMM slots support RDIMMs up to 3TB max, with speeds reaching 4800 MT/s — registered ECC DDR5 DIMMs only.
The R6615 uses registered DIMMs (RDIMMs) to reach maximum platform memory capacity; unbuffered DIMMs (UDIMMs) are not supported.
| DIMM type |
Rank |
Capacity |
DIMM rated voltage and speed |
Operating Speed |
| 1 DIMM per channel (DPC) |
| RDIMM |
1R |
16 GB |
DDR5 (1.1 V), 4800 MT/s |
4800 MT/s |
| 2R |
32 GB |
DDR5 (1.1 V), 4800 MT/s |
4800 MT/s |
| 2R |
64 GB |
DDR5 (1.1 V), 4800 MT/s |
4800 MT/s |
| 4R |
128 GB |
DDR5 (1.1 V), 4800 MT/s |
4800 MT/s |
| 6R |
256 GB |
DDR5 (1.1 V), 4800 MT/s |
4800 MT/s |
Expansion Slots Options
Three PCIe slots give this server room for a range of adapter options, with support for up to 2x 75W GPUs per unit.
| Config No. |
RSR Configuration |
# of CPUs |
PERC type supported |
Rear Storage Possible |
| 0 |
NO RSR |
1 |
Front PERC |
No |
| 1 |
R2A + R3A |
1 |
Front PERC |
Yes |
| 2 |
R2T + R3P |
1 |
Front PERC |
Yes |
| 3 |
R1Q + R4p |
1 |
Front PERC |
No |
| 4 |
R2T |
1 |
Front PERC |
Yes |
| 5 |
R3P |
1 |
Front PERC |
Yes |
| 6 |
R2A |
1 |
Front PERC |
No |
| 7 |
R2U + R3S |
1 |
Front PERC |
Yes |
| 8 |
R2T + R3A |
1 |
Front PERC |
Yes |
Networking
Networking Adapters
An optional 2x 1GbE LOM card and optional 1x OCP 3.0 card can be installed independently or together on this system. The OCP card supports up to 4 ports at speeds up to 25Gb/s, while the LOM is limited to 2 ports.
| Feature |
Specifications |
| LOM card (optional) |
1 GB x 2 |
| OCP card (OCP 3.0) (optional) |
1 GbE x 4, 10 GbE x 2, 10 GbE x 4, 25 GbE x 2, 25 GbE x 4 |
| NOTE: The system allows either LOM card or an OCP card or both to be installed in the system. |
| NOTE: On the system board, the supported OCP PCIe width is x8; when x16 PCIe width is installed, it is downgraded to x8. |
Storage Controllers
Dell's fPERC solution delivers a base RAID hardware controller without occupying a PCIe slot, using a compact, high-density connector to the base planar. The 16G PERC controller lineup draws heavily from the established 15G family, carrying forward the Value and Value Performance tiers, while introducing the new Harpoon-based Premium Performance tier — a high-end option built to boost IOPS and enhance SSD performance.
Internal Controllers (RAID):
PERC H965i, PERC H755, PERC H755N, PERC H355, HBA355i,
Internal Boot:
Boot Optimized Storage Subsystem (BOSS-N1): HWRAID 2 x M.2 NVMe SSDs or USB
External HBA (non-RAID):
HBA355e, HBA465e, H965e
Software Raid:
S160
| Performance Level |
Controller and Description |
| Entry |
S160 |
| Value |
H355, HBA355 (Internal/External), HBA465 (External) |
| Premium Performance |
H755, H755N, H965 (Internal/External) |
Power & Dimensions
Power
Two redundant AC or DC power supply units are supported, using the same 60mm form factor carried over from 15G to 16G — PSUs should not be mixed.
Dimensions:
- Width 482 mm (18.97")
- Height 42.8 mm (1.685")
- Length w/ bezel 822.89 mm (32.39")
- Length w/o bezel 809.05 mm (31.85")
Weight:
With drives 20.2 kg (44.53 lbs)
Without drives and PSU installed 17.4 kg (38.36 lbs)