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Sixteen green DDR5 server memory modules in a row

NEMIX RAM

NEMIX RAM 2TB (16x128GB) DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM Dell PowerEdge XE8640 memory upgrade

SKU CH-HHH7-B1749

A 2 TB registered DDR5 kit containing sixteen 128 GB modules running at 4800 MT/s with CL40 latency, 1.1 V operation and ECC for Dell PowerEdge XE8640 servers

  • Total capacity2 TB (16 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 2 TB total capacity for large-scale workloads
  • 16 modules of 128 GB each for maximum density
  • DDR5 4800 speed with CL40 latency
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw

Dell PowerEdge XE8640 2TB DDR5 kit

This NEMIX RAM kit provides 2TB of DDR5 memory for the Dell PowerEdge XE8640 rack server using 16 modules of 128GB each. The modules are registered ECC RDIMMs operating at 4800MHz with CL40 latency and 1.1V. They are built for enterprise workloads that demand high capacity and data integrity.

Suits servers needing maximum registered ECC

IT teams running virtualisation, large databases or memory-intensive analytics on a compatible Dell platform will benefit from the 2TB density and error-correcting design. Systems that require unbuffered memory, non-ECC modules, lower voltages, or consumer form factors cannot use this kit.

4Rx4 organisation across 16 registered DIMMs

Each 288-pin module uses a 4Rx4 layout to reach 128GB per stick, delivering the full 2TB when all 16 slots are populated. The registered buffer and ECC function are mandatory for the target server, so the platform must support both to accept this configuration.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $65,655.99
Pricier than about 98% of the 21,161 comparable items (median $397.99).
Total capacity 2 TB (16 × 128 GB)
Higher than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $32.83 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K16
Total capacity2 TB (16 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items2 TB (16 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Should I pick the 16-module kit or a smaller capacity for my Dell PowerEdge XE8640?

The kit contains 16 modules of 128 GB each for a total of 2 TB; choose it when the server’s memory plan calls for full population across all channels.

What does the 4800 MT/s rating deliver once installed in the PowerEdge XE8640?

The modules run at DDR5 4800 with CL40 latency and 1.10 V, providing the rated bandwidth of PC5-38400 when the platform operates at its native speed.

How does the 288-pin RDIMM interface with 4Rx4 organisation affect compatibility?

The 288-pin registered DDR5 form factor with 4Rx4 organisation and ECC is keyed for DDR5-only slots, so it fits the PowerEdge XE8640 memory channels.

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