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Green 288-pin DDR4 RDIMM module with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR4 3200 CL22 2Rx4 1.2V 288-Pin ECC RDIMM Lenovo 02JK971 memory upgrade

SKU CH-W3F1-Z55R5

64GB DDR4 3200 ECC registered RDIMM for Lenovo servers, CL22 1.2V 2Rx4 288-pin

  • Total capacity64 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 64 GB capacity doubles server memory headroom
  • DDR4 3200 speed feeds data at PC4-25600 bandwidth
  • ECC registered design corrects errors for uptime
  • 2 V operation cuts power draw per module
  • 288-pin RDIMM fits Lenovo 02JK971 slots

Lenovo 02JK971 Compatible 64GB DDR4 RDIMM

This registered ECC module is built for Lenovo servers and workstations that require DDR4 3200 memory. It suits administrators upgrading a single slot in a supported platform. Buyers needing non-ECC unbuffered DIMMs or a different pin count cannot use this product.

Single Rank 2Rx4 64GB at 3200 MT/s CL22

The module delivers 64GB capacity in one 288-pin stick running at 1.20V with CL22 latency. It handles large datasets and virtualization workloads within the rated speed. Systems requiring higher frequencies, lower latencies, or multiple ranks per channel will exceed what this module provides.

No Heat Spreader Included in Package

The box contains only the 1x64GB DDR4 3200 PC4-25600 2Rx4 1.2V CL22 288-pin ECC RDIMM. There are no additional cooling accessories, cables, or software utilities supplied. Installers who need thermal management must source a separate solution.

How it compares

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

Price $467.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $7.31 per GB
Cheaper than about 55% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-924K1
Total capacity64 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (1 × 64 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will this DDR4 3200 CL22 ECC RDIMM run alongside my existing DDR4 modules in the same Lenovo server?

The module is a 64GB 2Rx4 DDR4 3200 CL22 registered DIMM at 1.20V; mixing speeds will cause the system to run all memory at the slowest installed speed and matching rank organisation is recommended.

How can I confirm the 64GB 2Rx4 ECC RDIMM is operating correctly after installation?

Check the BIOS or UEFI memory summary to verify 64GB detected, ECC enabled, speed shown as 3200 MT/s and CL22 timings applied.

What is included with the MR25600-924K1 module and what must be sourced separately?

The package contains one 64GB 288-pin DDR4 3200 CL22 ECC RDIMM; no heat spreader, cables, tools or additional memory are included.

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