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Two green DDR5 RDIMM sticks, no heat spreaders, 288-pin, 128GB kit

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 CL40 ECC RDIMM Dell PowerEdge XE9640

SKU CH-KEPV-6EG34

Dual 64 GB DDR5 4800 ECC registered modules totalling 128 GB, validated for Dell PowerEdge XE9640 servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC registered design protects data integrity in mission-critical workloads
  • 4800 MT/s DDR5 speed with CL40 latency supports Dell PowerEdge XE9640 performance
  • Dual-rank 2Rx4 architecture maximises 128GB capacity across two 64GB modules
  • 10V operating voltage reduces power draw for dense server configurations
  • 288-pin RDIMM form factor ensures direct compatibility with Dell PowerEdge XE9640

Dell PowerEdge XE9640 server memory kit

This 128GB kit contains two 64GB DDR5 4800 ECC RDIMM modules built for the Dell PowerEdge XE9640. Registered buffering and error-correcting code protect data integrity in mission-critical workloads. The 2Rx4 organisation and 1.10V operation match the platform's qualified memory list. IT teams specifying this part number avoid compatibility guesswork.

Capacity and headroom for dense workloads

Two ranks per module give 128GB total across a pair of slots, leaving remaining channels open for future expansion. CL40 latency at 4800 MT/s handles virtualisation, database and HPC tasks within the server's validated envelope. Workloads that exceed 128GB per socket will require additional DIMMs or higher-density modules not included here.

Packaged as a matched pair for immediate deployment

The kit ships as a factory-matched 2x64GB set so both modules share identical timing and rank characteristics. No extra brackets, cables or software licences are bundled — only the two RDIMMs ready for tool-less insertion. Buyers needing single-module spares or mixed-capacity configurations must source those separately.

How it compares

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

Price $3,298.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.77 per GB
Pricier than about 70% 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 numberMR38400-924K2
Total capacity128 GB (2 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (2 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Can I mix these DDR5 4800 CL40 ECC RDIMMs with existing memory in my PowerEdge XE9640?

Mixing modules of different speeds, ranks or capacities is not recommended; the system will run all channels at the slowest module's specifications and may disable ECC or registered features if configurations differ.

How can I verify the kit is running at DDR5 4800 CL40 with ECC active after installation?

Enter the system BIOS or iDRAC interface and confirm the memory speed shows 4800 MT/s, CAS latency 40, ECC status enabled and the total capacity reads 128 GB across both 64 GB modules.

What exactly ships in the box and do I need any extra brackets or cables?

The package contains two 64 GB 288-pin DDR5 RDIMM modules; no heat spreaders, brackets, cables or additional hardware are included or required for installation in the PowerEdge XE9640.

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