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Green rectangular DDR4 LRDIMM module with black chips and gold edge connectors

NEMIX RAM

NEMIX RAM 64GB 1Rx4 DDR4 2666 PC4-21300 CL19 288-Pin ECC LRDIMM HPE Compatible memory upgrade

SKU CH-5G25-MZ4DG

64 GB DDR4 2666 ECC LRDIMM for HPE servers, CL19 1.2 V 288-pin load-reduced module

  • Capacity64GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 64 GB capacity lets you run large workloads on HPE servers
  • DDR4 2666 speed delivers 21300 MT/s bandwidth for responsive performance
  • ECC and load-reduced design protect data integrity in mission-critical environments
  • 2 V operation reduces power draw while maintaining stability
  • 288-pin LRDIMM form factor fits compatible HPE 815101 systems

HPE-compatible 64 GB LRDIMM

This 64 GB DDR4 2666 module uses load-reduced ECC technology for HPE server and workstation platforms. The 288-pin LRDIMM format reduces electrical load on the memory bus, allowing higher densities per channel. It operates at 1.20 V with a CAS latency of CL19.

DDR4 2666 speed and load-reduced limits

The PC4-21300 interface caps throughput at the DDR4 2666 data rate, so bandwidth scales with channel count rather than per-module frequency. Load-reduced buffering adds a clock cycle of latency versus standard RDIMM, which can affect latency-sensitive workloads. Quad-rank 4Rx4 organisation further limits maximum ranks per channel on some platforms.

64 GB single-module capacity headroom

A single 64 GB stick delivers large capacity in one slot, useful for memory-heavy virtualisation or in-memory databases. Four ranks per module consume rank budget quickly, so total system capacity may hit the platform rank limit before all slots are filled. Workloads needing more than the supported rank count per channel will require fewer, higher-density modules or a different platform.

商品特色

  • 64 GB capacity lets you run large workloads on HPE servers
  • DDR4 2666 speed delivers 21300 MT/s bandwidth for responsive performance
  • ECC and load-reduced design protect data integrity in mission-critical environments
  • 2 V operation reduces power draw while maintaining stability
  • 288-pin LRDIMM form factor fits compatible HPE 815101 systems

商品規格

BrandNEMIX RAM
SeriesHPE Server/Workstation Compatible Series Memory
ModelHPE 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 SystemHPE
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

商品問答

Should I pick the single 64 GB module or combine smaller sticks to reach the same capacity?

This listing is a single 64 GB 4Rx4 LRDIMM; adding smaller modules would mix ranks and may prevent the server from reaching full speed.

What does the 2666 MT/s rating deliver in an actual HPE server?

The module runs at 2666 MT/s with CL19 latency at 1.2 V, giving the maximum bandwidth the platform’s memory controller allows for DDR4 LRDIMM.

How does the 288-pin LRDIMM interface limit performance compared to standard RDIMM?

The load-reduced design buffers the data bus so the 4Rx4 organisation does not overload the channel, letting the 64 GB stick operate at the full 2666 MT/s spec.

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