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Green rectangular DDR4 RDIMM module with gold contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 8GB DDR4 2666 ECC RDIMM 1Rx8 CL19 Dell PowerEdge R440 memory upgrade

SKU CH-X8N6-J0H9M

8 GB DDR4 2666 ECC registered DIMM, CL19 1.20 V, for Dell PowerEdge R440 servers

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • ECC protection prevents data corruption in critical workloads
  • Registered design reduces electrical load for stable server operation
  • 2666 MHz DDR4 speed matches Dell PowerEdge R440 specifications
  • 2 V low voltage lowers power draw in dense configurations
  • 1Rx8 single-rank layout optimises memory channel efficiency

Dell PowerEdge R440 ECC RDIMM

This 8GB DDR4 2666 registered DIMM is built for Dell PowerEdge R440 rack servers. It adds ECC-protected capacity to systems running virtualisation, databases or other memory-intensive workloads. The module arrives new and ready for immediate installation.

CL19 latency at 1.20 V

The single decisive specification is CAS latency 19 at the standard 1.20 V operating voltage. This timing matches the platform memory controller expectations for stable registered operation without manual tuning.

Suits administrators expanding R440 memory

Buyers who need higher densities per slot or non-ECC memory for desktop platforms should look elsewhere. This part is validated only for the listed Dell server configuration.

How it compares

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

Price $54.99
Cheaper than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.87 per GB
Cheaper than about 58% 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 DDR4 2666 MHz ECC RDIMM Registered Server Memory
Part numberMR21300-818K1
Total capacity8 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items8 GB (1 × 8 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

What does the 2666 MT/s speed mean once the module is installed in a Dell PowerEdge R440?

The module runs at 2666 MT/s if the processor and BIOS support that rate; otherwise the system clocks it down to the highest supported DDR4 speed.

How does the registered DDR4 ECC interface affect usable capacity and stability?

The register adds one cycle of latency and the ECC logic uses one chip per rank, so the 8 GB module delivers full 8 GB capacity with single-bit error correction and multi-bit detection.

Will the 288-pin RDIMM fit the memory slots in a Dell PowerEdge R440 without a heat spreader?

Yes, the 288-pin DDR4 RDIMM form factor matches the R440 DIMM slots; the bare PCB is the standard low-profile height for 1U rack servers.

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