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Green DDR4 RDIMM module with black chips, no heat spreader, 288 gold pins

NEMIX RAM

NEMIX RAM 64GB DDR4 2933 PC4-23400 CL21 2Rx4 1.2V 288-Pin ECC RDIMM HPE P19045-B21 memory upgrade

SKU CH-23KR-X3AE4

64 GB DDR4-2933 ECC registered DIMM with CL21 latency and 1.2 V operation for HPE P19045-B21 servers

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 64 GB capacity expands server memory headroom
  • DDR4 2933 MT/s speed supports high-throughput workloads
  • ECC registered design protects data integrity
  • 2 V operation reduces power draw
  • 288-pin RDIMM form factor fits HPE P19045-B21 systems

HPE-Compatible DDR4 ECC RDIMM

This 64 GB DDR4 2933 module is built for HPE servers and workstations that require registered ECC memory. The 2Rx4 organisation and CL21 timing match the P19045-B21 specification for reliable operation in multi-socket platforms. It targets administrators upgrading memory capacity in qualified HPE systems.

Single-Module 64 GB Upgrade

The package contains one 288-pin RDIMM delivering the full 64 GB in a single slot. This layout preserves remaining DIMM slots for future expansion while immediately adding maximum density per channel. No heat spreader is fitted, so airflow in dense server chassis is unaffected.

Registered ECC Build for 24/7 Workloads

Major-brand Samsung, Micron or Hynix DRAM chips operate at 1.20 V under registered control, reducing electrical load on the memory controller. The 288-pin RDIMM form factor locks into standard DDR4 server sockets, and the registered buffer helps maintain signal integrity across fully populated channels. Not suited for desktop boards that accept only unbuffered non-ECC DIMMs.

How it compares

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

Price $413.99
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 $6.47 per GB
Cheaper than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineHPE Server/Workstation Compatible Series Memory
Model nameHPE DDR4 2933 MHz ECC RDIMM Registered Server Memory
Part numberMR23400-924K1
Total capacity64 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHPE
In the box
Included items64 GB (1 × 64 GB) DDR4 2933 MHz PC4-23400 2Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the Samsung, Micron or Hynix chips on this 64 GB DDR4 module need replacement during the server's lifespan?

The module uses major OEM chips from Samsung, Micron or Hynix and carries a lifetime replacement warranty; no scheduled chip replacement is required.

What limit appears first when this CL21 2933 MT/s RDIMM runs sustained workloads?

CAS latency of 21 cycles at 2933 MT/s sets the first timing boundary before the PC4-23400 bandwidth ceiling is reached.

How much heat and power does a single 1.20 V 2Rx4 stick produce in 24/7 operation?

At 1.20 V the 64 GB registered DIMM draws minimal power and runs without a heat spreader, so thermal output stays low in continuous use.

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