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Green rectangular DDR4 LRDIMM module with black chips and gold contacts

NEMIX RAM

NEMIX RAM 64GB DDR4 2666MHz CL19 ECC LRDIMM 4Rx4 1.2V 288-pin memory upgrade

SKU CH-DJQH-GMYPX

A 64GB DDR4 2666MHz ECC LRDIMM module with CL19 latency and 1.2V operation for compatible Lenovo ThinkSystem servers

  • Capacity64GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 64 GB single module expands server capacity
  • Load-reduced ECC design improves data integrity
  • DDR4 2666 MHz speed matches system spec
  • 2 V operation reduces power draw
  • Validated for Lenovo ThinkSystem 4X77A78614

Capacity and form factor

This NEMIX RAM module delivers 64GB in a single 288-pin DDR4 LRDIMM. It is built for servers and workstations that require load-reduced memory to support high-density configurations.

Registered ECC with 4Rx4 organisation

The module operates at 2666MHz with a CL19 latency and 1.2V voltage. Its 4Rx4 rank structure and load-reduced buffering reduce electrical load on the memory bus, allowing larger total system memory than standard registered DIMMs.

Suited for Lenovo ThinkSystem upgrades

This part matches Lenovo part number 4X77A78614 and is validated for compatible ThinkSystem platforms. Buyers who need non-ECC memory, standard RDIMMs, or modules for consumer desktop boards should look at something else.

Points forts

  • 64 GB single module expands server capacity
  • Load-reduced ECC design improves data integrity
  • DDR4 2666 MHz speed matches system spec
  • 2 V operation reduces power draw
  • Validated for Lenovo ThinkSystem 4X77A78614

Caractéristiques

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR4 2666MHZ ECC LRDIMM Load Reduced Server Memory
Part NumberML21300-944K1
Capacity64GB
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredLoad Reduced
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemLenovo
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 LRDIMM
Rank4Rx4
FeaturesDDR4 ECC LRDIMM Load Reduced Server Motherboard Compatible
Package Content64GB (1X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V CL19 288-PIN ECC LRDIMM Load Reduced Server Memory

Questions sur cet article

What does 2666MHz mean once this module is installed in a Lenovo ThinkSystem server?

The module runs at 2666 MT/s, delivering PC4-21300 bandwidth when the memory controller is configured for that speed.

How does the LRDIMM interface affect usable capacity and signal loading?

Load-reduced DIMM buffering isolates the 4Rx4 ranks so the memory controller sees only one electrical load per slot.

Will the 288-pin LRDIMM fit in a standard DDR4 UDIMM slot on a workstation board?

No, the LRDIMM key notch differs from UDIMM and RDIMM slots; it requires a server motherboard with LRDIMM support.

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