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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 5600 ECC RDIMM for Dell PowerEdge XE9685L

SKU CH-NCYB-C3F67

A 256GB DDR5 registered ECC kit with two 128GB modules running at 5600MHz and CL46 latency for Dell PowerEdge XE9685L servers

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V

Size 256GB 2X128GB

Show 6 more

Speed 5600MHz

  • 256 GB kit doubles server capacity with two 128 GB modules
  • DDR5 5600 speed feeds data to Dell PowerEdge XE9685L processors
  • ECC registered design corrects errors for uninterrupted workloads
  • 1 V operation reduces power draw per module
  • 4Rx4 288-pin layout fits qualified memory slots

Capacity and Compatibility

This NEMIX RAM kit delivers 256GB of DDR5 ECC registered memory in a two-module configuration of 128GB each. It is built for the Dell PowerEdge XE9685L rack server and operates at 5600MHz with a CAS latency of 46. The modules run at 1.1V and use a 288-pin RDIMM form factor with 4Rx4 organisation.

Suited Workloads and Limits

This memory suits environments that require error-correcting registered DIMMs at the specified density and speed. It will not fit systems that need unbuffered modules, non-ECC memory or a different DDR generation. Buyers who need lower capacity kits, different rank configurations or modules with heat spreaders should look at other options.

Sustained Operation

The registered design and ECC function maintain data integrity during continuous server workloads. Operating at the standard 1.1V DDR5 voltage helps keep power draw consistent under load. Without a heat spreader, thermal performance depends on the chassis airflow provisioned by the Dell PowerEdge XE9685L platform.

How it compares

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

Price $8,046.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $31.43 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 numberMR44800-744K2
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items256 GB (2 × 128 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the Dell PowerEdge XE9685L need a specific BIOS version to recognise the 4Rx4 organisation of these modules?

The kit is built to Dell specifications for the XE9685L, so the 4Rx4 layout is supported by the platform's qualified memory list.

Can I keep my existing DDR5 4800 RDIMMs installed together with these 5600 CL46 modules?

The server will clock all channels to the lowest common speed; mixing 4800 and 5600 modules will run everything at 4800.

How do I confirm the kit is running at 5600 MT/s with ECC active after installation?

Check the POST memory summary or the iDRAC inventory — both will show 5600 MT/s, 1.1 V, CL46 and ECC enabled.

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