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Green bare circuit board DDR5 RDIMM module with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 128GB DDR5 6400MHz CL52 1.1V 4Rx4 ECC RDIMM memory upgrade

SKU CH-Z5XJ-MZ23N

A 128 GB DDR5 registered ECC module running at 6400 MHz with CL52 latency and 1.1 V for Dell PowerEdge XE9685L servers

  • Total capacity128 GB
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4

Size 128GB

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Speed 6400MHz

  • 128 GB capacity supports large workloads
  • DDR5 6400 MHz speed enables fast data transfer
  • CL52 latency with 1.1 V voltage balances performance and efficiency
  • ECC RDIMM registered design ensures data integrity for servers
  • Compatible with Dell PowerEdge XE9685L rack server

NEMIX RAM 128GB DDR5 6400MHz ECC RDIMM

This 128GB DDR5 registered DIMM runs at 6400MHz with CL52 latency and a 1.1V operating voltage. It is built for the Dell PowerEdge XE9685L rack server and uses 4Rx4 organisation with on-die ECC for data integrity. The module suits administrators who need maximum capacity per slot in a validated server platform.

288-pin DDR5 RDIMM installation notes

The stick follows the standard 288-pin DDR5 RDIMM form factor and seats in a compatible DIMM slot without tools. Because it is a registered 4Rx4 module, the platform memory controller must support that rank configuration; otherwise the system will not post. Mixing ranks or voltages across channels can also prevent boot, so populate slots according to the server manual.

Sustained-load behaviour in a Dell PowerEdge XE9685L

Registered buffering and on-die ECC keep signal integrity stable during continuous enterprise workloads such as virtualisation or database processing. The 1.1V supply limits power draw per module while the 6400MHz data rate maintains throughput over long periods. Thermal throttling is managed by the server’s airflow design rather than a module-mounted spreader.

How it compares

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

Price $4,360.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $34.07 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 lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-744K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (1 × 128 GB) DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM

Other versions of this model

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Questions about this item

How can I verify the module is running at 6400MHz CL52 after installing it in my Dell PowerEdge XE9685L?

Enter the system BIOS or use a tool like CPU-Z to confirm the memory operates at 6400MHz with CAS latency 52 and 1.1V.

What is included in the package and do I need any extra parts for installation?

The box contains one 128GB 288-pin DDR5 ECC RDIMM. No additional components are required; the module installs directly into a compatible DIMM slot.

Which capacity and rank configuration should I choose for the PowerEdge XE9685L?

This part is a single 128GB 4Rx4 module (part number MR51200-744K1). Select it when you need one 128GB registered DIMM for that server.

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