We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular DDR4 LRDIMM module with black chips on both sides and gold edge connectors

NEMIX RAM

NEMIX RAM 32GB DDR4 2666 ECC LRDIMM 1Rx4 CL19 288-Pin memory upgrade

SKU CH-A4AJ-0E0C7

32 GB DDR4 2666 ECC LRDIMM module with 2Rx4 ranks and CL19 latency for HPE Z840 servers

  • Capacity2TB (16 x 128GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 32 GB capacity expands server memory headroom
  • DDR4 2666 speed delivers high data throughput
  • ECC LRDIMM technology protects data integrity
  • 2Rx4 rank organisation optimises signal loading
  • 2 V operation reduces power consumption

32 GB DDR4 LRDIMM for HPE Z840

This 32 GB DDR4 2666 MHz load-reduced ECC module is built for the HPE Z840 server platform. It targets IT teams that need registered memory with error correction for mission-critical workloads.

Thermals and power in daily use

The module runs at 1.2 V without a heat spreader, relying on chassis airflow for cooling. Load-reduced buffering reduces electrical load on the memory controller, helping keep system power draw stable under sustained demand.

Build and slot implications

A 288-pin LRDIMM form factor fits DDR4 server slots that support load-reduced memory. The 2Rx4 organisation and CL19 latency suit high-capacity configurations, but the module will not work in consumer desktop boards or unbuffered channels.

Highlights

  • 32 GB capacity expands server memory headroom
  • DDR4 2666 speed delivers high data throughput
  • ECC LRDIMM technology protects data integrity
  • 2Rx4 rank organisation optimises signal loading
  • 2 V operation reduces power consumption

Specifications

BrandNEMIX RAM
SeriesHPE Server/Workstation Compatible Series Memory
ModelHPE DDR4 2666MHZ ECC LRDIMM Load Reduced Server Memory
Part NumberML21300-324K1
Capacity2TB (16 x 128GB)
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
Rank2Rx4
FeaturesDDR4 ECC LRDIMM Load Reduced Server Motherboard Compatible
Package Content32GB (1X32GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V CL19 288-PIN ECC LRDIMM Load Reduced Server Memory

Questions about this item

How do I install the 288-pin DDR4 LRDIMM in my HPE Z840 server, and which step do people often get wrong?

Align the notch on the module with the slot key, press straight down until both retention clips click, and verify the 2Rx4 rank appears in BIOS; the step often missed is seating the module fully so both clips engage at once.

What maintenance or replacement will the 32GB ECC LRDIMM need during its service life?

No scheduled maintenance is required; ECC corrects single-bit errors on the fly, and the module should only be replaced if the server logs uncorrectable memory errors or a DIMM health alert.

What limit appears first when the 2666 MHz CL19 LRDIMM runs sustained workloads?

The CAS latency of CL19 at 2666 MT/s sets the timing ceiling; sustained throughput will be bound by that latency before thermal or voltage limits are reached.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.