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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 512GB 16x32GB DDR5 4800 ECC RDIMM Dell XE9640

SKU CH-RMDT-QR8XD

512 GB DDR5 ECC registered server memory kit with sixteen 32 GB modules at 4800 MT/s for Dell PowerEdge XE9640

  • Total capacity512 GB (16 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity from 16 modules of 32 GB each
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered design with 2Rx8 organisation for data integrity
  • 1 V operating voltage reduces power draw
  • Validated for Dell PowerEdge XE9640 rack servers

512GB DDR5 ECC RDIMM Kit

This 512GB kit contains sixteen 32GB DDR5 4800 registered DIMMs built for Dell PowerEdge XE9640 rack servers. Each module operates at 1.1V with CL40 latency and 2Rx8 organisation. The registered design and ECC support are required for the target platform.

Registered ECC for XE9640 Compatibility

The modules are registered ECC RDIMMs, a hard requirement for the Dell PowerEdge XE9640 memory subsystem. Unbuffered or non-ECC DIMMs will not function in this server. Verify the system memory configuration guide for population rules before installation.

Standard Voltage DDR5 Thermals

Running at the standard 1.1V DDR5 voltage, the modules draw typical registered DIMM power without exotic cooling needs. No heat spreaders are fitted, so airflow through the server chassis provides sufficient cooling under normal workloads.

How it compares

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

Price $14,963.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (16 × 32 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $29.23 per GB
Pricier than about 83% 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 numberMR38400-328K16
Total capacity512 GB (16 × 32 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 rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items512 GB (16 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

What does the 4800 MT/s speed mean when the modules are installed in a Dell PowerEdge XE9640?

The kit runs at DDR5 4800 (PC5-38400) with CL40 latency, delivering the rated throughput once the server's memory controller trains the 16 registered DIMMs at 1.10 V.

How does the 288-pin DDR5 RDIMM interface limit the configuration in this server?

Each of the 16 modules is a 288-pin registered DIMM; the XE9640's memory slots accept this form factor and the registered buffer allows all 16 ranks (2Rx8 per module) to be populated without exceeding the platform's electrical load limits.

What physical space and power do the 16 modules need inside the rack server?

The kit consists of 16 standard-height 288-pin RDIMMs without heat spreaders, each drawing 1.10 V; they occupy 16 DIMM slots and require no additional clearance beyond the server's normal memory bay.

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