Owners Manual

Memory specifications
The XC XR2 system supports 16 DDR4 registered DIMM (RDIMMs) slots. Supported memory bus frequencies are 2666 MT/s, 2400
MT/s, 2133 MT/s, and 1866 MT/s.
Table 18. Memory specifications
DIMM
type
DIMM rank
DIMM
capacity
Single processor Dual processors
Minimum RAM Maximum RAM Minimum RAM Maximum RAM
RDIMM Dual rank 16 GB 16 GB 160 GB 32 GB 256 GB
RDIMM Dual rank 32 GB 32 GB 320 GB 64 GB 512 GB
LRDIMM Quad rank 64 GB 64 GB 640 GB 128 GB 1024 GB
Storage controller specifications
The Dell EMC XC XR2 system supports:
• Internal controllers: PowerEdge Expandable RAID Controller (PERC) HBA330
• HBAs (non-RAID): 12 Gbps SAS HBA
• Boot Optimized Storage Subsystem (BOSS): HWRAID 2 x M.2 SSDs 120GB, 240 GB with 6Gbps
• x8 connector using PCIe gen 2.0 x2 lanes, available only in the low-profile and half-height form factor
Drive specifications
Drives
The XC XR2 system supports:
• Up to 8 x 2.5 inch drives with drive adapter, internal, hot swappable SATA, SAS SSDs, and SAS HDDs
Ports and connectors specifications
Common Access Card (CAC)
The integrated Common Access Card (CAC) reader or Smart card reader allows for an additional form of authentication for data
encryption. The XC XR2 system supports one CAC on the front panel.
USB ports
The XC XR2 system supports:
• USB 2.0-compliant port on the front panel
• USB 3.0-compliant port on the back panel
The following table provides more information about the USB specifications:
Table 19. USB specifications
Front panel Back panel Internal USB
• One USB 2.0-compliant port
• One iDRAC Direct (Micro-AB USB)
port
• Two USB 3.0-compliant port • One internal USB 2.0 port on the FIO board
Technical specifications 25