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Green rectangular circuit board with gold edge connectors and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2666MHz ECC RDIMM 2Rx4 CL19 1.2V 288-pin memory upgrade

SKU CH-KR2D-HNJKK

16 GB DDR4-2666 ECC registered DIMM, CL19 1.2 V 2Rx4 288-pin module for Micron-compatible servers and workstations

  • Total capacity16 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 signal buffering improves stability on multi-module server boards
  • 16 GB capacity at 2666 MHz DDR4 expands memory headroom for virtualization
  • Low 1.2 V operation reduces power draw in dense configurations
  • 2Rx4 dual-rank layout optimises bandwidth on compatible Micron platforms

Compatible Server Memory Upgrade

This NEMIX RAM module provides 16 GB of DDR4 2666 ECC registered memory for Micron-compatible servers and workstations. It operates at 1.2 V with CL19 latency and a 2Rx4 organisation across 288 pins. The single stick delivers PC4-21300 bandwidth for stable operation in mission-critical environments.

Suited For And Not Suited For

The registered design with ECC suits administrators expanding capacity in supported Micron platforms that require buffered modules. Builders needing unbuffered UDIMMs for desktop boards or laptops should look elsewhere. Systems limited to lower speeds or different pin counts cannot use this part.

Deciding Specification

Registered ECC RDIMM format is the single specification that determines fit; only motherboards accepting 288-pin DDR4 registered modules with 2Rx4 ranking will post correctly with this memory.

How it compares

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

Price $113.99
Cheaper than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.12 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineMicron Server/Workstaion Compatible Series Memory
Model nameMicron DDR4 2666 MHz ECC RDIMM Registered Server Memory
Part numberMR21300-624K1
Total capacity16 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 rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsMICRON
In the box
Included items16 GB (1 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx4 1.2 V CL19 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the 288-pin RDIMM fit a standard DDR4 server DIMM slot?

Yes, the module uses the 288-pin DDR4 RDIMM form factor that matches standard registered server memory slots.

What is the correct orientation step when seating the 2Rx4 module?

Align the off-centre notch on the 288-pin edge connector with the slot key, then press firmly until both retention clips click.

Will the ECC RDIMM require any firmware updates or battery replacements over its service life?

No, the memory has no onboard battery or programmable firmware; it operates passively once installed.

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