Reference Guide

NOTE: NVDIMM-N memory slots and NVDIMM-N battery are not hot-pluggable.
Storage controller specifications
The PowerEdge R940 system supports:
● Internal controllers: S140 (NVMe drives only), and NVMe PCIe SSD adapter.
● Internal controllers: PowerEdge RAID Controller (PERC) H330, HBA330, H730P, H740P and Boot optimized storage
subsystem.
●
External HBAs (RAID): H840
● External HBAs (non-RAID): 12Gbps SAS HBA
Remote management port specifications
The PowerEdge R940 system supports one dedicated 1Gbe Ethernet port with optional card and up to two optional shared NIC
ports.
Drive specifications
Hard drives
The PowerEdge R940 system supports SAS, SATA, Nearline SAS, NVMe hard drives or SSDs.
Table 7. Supported drive options for the PowerEdge R940 system
System Description
Eight drives system Up to eight 2.5-inch (SAS, SATA or Nearline SAS) front accessible
drives in slots 0 through 7
Twenty four drives system Up to twenty four 2.5-inch (SAS, SATA or Nearline SAS) front
accessible drives in slots 0 through 23
Twenty four drives system Up to twenty SAS + 4 NVMe SAS/SATA drives in slots 0 to 19 + slots
20 to 23
Twenty four drives system Up to sixteen SAS + 8 NVMe SAS/SATA drives in slots 0 to 15 + slots
16 to 23
Ports and connectors specifications
USB ports
The PowerEdge R940 system supports:
● Two USB 3.0-compliant ports on the front panel
● Two USB 3.0-compliant ports on the back panel
● One USB 3.0-compliant internal port
An optional USB memory key installed inside your system can be used as a boot device, security key, or mass storage device. To
boot from the USB memory key, configure the USB memory key with a boot image and then specify the USB memory key in the
boot sequence in System Setup.
PowerEdge R940 technical specifications
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