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Single green 288-pin DDR4 LRDIMM module, no heat spreader, gold edge contacts

NEMIX RAM

NEMIX RAM 64GB DDR4 2933 ECC LRDIMM Mac Pro Rack 2020 memory upgrade

SKU CH-CC3K-ND358

A 64GB DDR4 2933 ECC LRDIMM module designed for the Apple Mac Pro Rack 2020

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V
  • 64 GB capacity expands Mac Pro Rack 2020 memory headroom
  • DDR4 2933 speed matches factory specification for MacPro 7,1
  • ECC LRDIMM technology protects data integrity in mission-critical workloads
  • 2 V operation keeps power draw low for dense configurations
  • 288-pin load-reduced module installs directly in Apple-validated slots

64GB DDR4 2933 ECC LRDIMM for Mac Pro Rack 2020

This NEMIX RAM module adds 64GB of DDR4 2933 memory to the Apple Mac Pro Rack 2020. It uses a 288-pin LRDIMM form factor with ECC and load-reduced architecture. The single 64GB stick operates at 1.20V with CL21 latency and a 4Rx4 rank configuration.

Thermals noise and power draw in normal use

The module runs at the standard DDR4 voltage of 1.20V without a heat spreader. Load-reduced buffering reduces electrical load on the memory controller during typical workloads. Passive cooling relies on system airflow inside the Mac Pro Rack enclosure.

Behaviour under sustained load rather than a short

ECC circuitry corrects single-bit errors continuously during extended operations. The 4Rx4 organisation and load-reduced design maintain signal integrity across all ranks under heavy memory pressure. Modules are stress tested under load by the manufacturer to verify stability for mission-critical environments.

How it compares

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

Price $288.99
Cheaper than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $4.52 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineApple Mac Pro Compatible Series Memory
Model nameApple DDR4 2933 MHz ECC LRDIMM Load Reduced Server Memory
Part numberML23400-944K1
Total capacity64 GB
Product type288-Pin DDR4 LRDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeLoad Reduced
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple
In the box
Included items64 GB (1 × 64 GB) DDR4 2933 MHz PC4-23400 4Rx4 1.2 V CL21 288-PIN ECC LRDIMM Load Reduced Server Memory

Questions about this item

How do I install the 64GB DDR4 2933 ECC LRDIMM in the Mac Pro Rack 2020, and what step is commonly missed?

Power down, unplug, slide the top cover latch, remove the MPX module tray, unlock the DIMM ejectors, align the 288-pin notch, press firmly until both latches click, reseat the tray, close the cover, then run Apple Diagnostics to confirm all 64GB register at 2933MHz.

Will the Samsung, Micron or Hynix chips on this LRDIMM need any maintenance or replacement over time?

No user-serviceable parts exist; the module is sealed and passively cooled. If a correctable ECC error count climbs in system logs, replace the stick — otherwise it runs for the system life.

What limit appears first when this 4Rx4 1.2V module runs sustained workloads in the Mac Pro Rack?

The memory controller's 2933MHz ceiling caps throughput; thermal throttling is unlikely because LRDIMM buffering reduces electrical load and the chassis airflow handles the 1.2V power envelope.

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