ItemItem DescriptionDescription ExampleExample
1 Capacity 16 GB
32 GB
64 GB
128 GB
256 GB
2 Rank 1R—Single rank
2R—Dual rank
4R—Quad rank
8R—Octal rank
3 Data width on DRAM x4—4-bit
x8—8-bit
4 Memory generation PC5—DDR5
5 Maximum memory speed 4800 MT/s
6 CAS latency B—42-42-42
B—50-42-42 (for 128 GB and 256 GB capacities)
7 DIMM type E—UDIMM (unbuffered with ECC)
R—RDIMM (registered)
The maximum memory speed and capacity is a function of the memory type, memory configuration, and processor model.
DIMM slot numberingDIMM slot numbering
1
1
1