Table 14. Expansion card riser specifications
Expansion card riser PCIe slots on the 
riser
Height Length Link
Riser 1 Slot 1 half-height low-profile x8
Riser 1 Slot 2 half-height low-profile x8
Riser 1 Slot 3 half-height low-profile x8
Riser 2 Slot 4 full-height full-length x16
Riser 2 Slot 5 full-height full-length x8
Riser 3 (alternate) Slot 6 full-height full-length x16
NOTE: When using slots 1 through 4 on the riser, ensure that both the processors are installed on 
the system.
GUID-B57167F2-1DB9-4283-A315-3F094CEC131D
Memory specifications
The Dell DR4300 system supports DDR4 registered DIMMs (RDIMMs). Supported memory bus 
frequencies are 1333MT/s, 1600 MT/s, 1866 MT/s, 2133MT/s, or 2400 MT/s.
Table 15. Memory specifications
Memory module 
sockets
Memory capacity Minimum RAM Maximum RAM
Twenty-four 288–
pin
4 GB single-ranked or 8 
GB dual-ranked RDIMMs
• 4 GB with single 
processor
• 8 GB with dual 
processors (minimum 
one memory module 
per processor)
64 GB with two 
processors
GUID-40E1EAB7-5862-41D4-844D-91B0F2C2D1D7
Drive specifications
GUID-092E5133-B62C-448C-8552-7729CD2C224D
Hard drives
The Dell DR4300 system supports up to twelve 3.5-inch hard drives and two optional 2.5-inch back-
accessible SAS, SATA, or Nearline SAS hard drives.
GUID-35EC5EFB-160A-4A43-A66D-EB5D10AF35DC
Ports and connectors specifications
GUID-B915F181-8D3E-443A-A876-7F350AD542ED
USB ports
The Dell DR4300 system supports:
22