| Product Name | PowerEdge R940xa Rack Server | PowerEdge R940 Rack Server |
| Processors | Up to four 2nd Generation Intel® Xeon® Scalable processors with up to 28 cores per processor | Up to four 2nd Generation Intel® Xeon® Scalable processors, up to 28 cores each |
| 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) | 48 DDR4 DIMM slots, Supports RDIMM /LRDIMM, up to 2933MT/s, 6TB max Up to 12 NVDIMM, 384GB Max Up to 24 Intel® Optane™ DC persistent memory DCPMM, max 12.28TB, (15.36TB max with DCPMM and LDRIMM) Supports registered ECC DDR4 DIMMs only |
| Drive bays | 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 | Front drive bays: Up to 24 x 2.5” SAS/SATA (HDD/SSD) with up to 12 NVMe PCIe SSD, max 184.32TB |
| Storage controllers | Internal Controllers
PERC H730P, H740P, H330, HBA330
Software RAID
S140
External HBAs (non-RAID)
12Gbps SAS HBA
External PERC (RAID)
H840
Boot Optimized Storage Subsystem
HWRAID 2 x M.2 SSDs 240GB or 480GB | Internal Controllers: PERC H330, H730P, H740P, HBA330 External Controllers: H840, 12 Gbps SAS HBA Software RAID:S140 Boot Optimized Storage Subsystem (BOSS):HWRAID 2 x M.2 SSDs 240GB, 480GB |
| 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 | Platinum 1100W, 1100W 380VDC, 1600W, 2000W, 2400W Gold 1100W-48VDC
Hot plug power supplies with full redundancy option 8 hot plugs fans with full redundancy |
| 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 | Network daughter card options 4x 1GbE, 4x 10GbE, 2x 10GbE+2x 1GbE, or 2x 25GbE Front ports: 1 x Dedicated iDRAC Direct USB, 2 x USB 3.0, 1 x VGA Rear ports: 1 x Dedicated iDRAC network port, 1 x Serial, 2 x USB 3.0, 1 x VGA Video card: 2 x VGA Up to 13 x Gen3 slots, (3 x8 + 10 x16) |
