Your Dell DR4300e system supports CR 2032 3.0-V lithium coin cell system battery.
Expansion bus specifications
The Dell DR4300e system supports PCI express (PCIe) generation 3 expansion cards, which need to be installed on the system board using expansion card risers. This system supports three types of expansion card risers. The following table provides the expansion card riser specifications:
The Dell DR4300e 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.