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Four green DDR4 LRDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR4 2933MHz CL21 ECC LRDIMM Mac Pro Rack 2020 memory upgrade

SKU CH-MQNV-09G63

A 256GB DDR4 2933MHz ECC LRDIMM kit of four 64GB modules for the Apple Mac Pro Rack 2020

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V
  • 256 GB kit expands Mac Pro Rack memory capacity
  • Four 64 GB modules fill all slots for maximum density
  • DDR4 2933 MHz speed matches factory specification
  • ECC load-reduced design protects data integrity under load
  • 2 V operation keeps power draw low in dense configs

Capacity and Configuration

This kit provides 256GB of DDR4 memory across four 64GB modules. It is built as load-reduced ECC LRDIMM for the Apple Mac Pro Rack 2020. The modules run at 2933MHz with CL21 latency at 1.2V.

Who This Suits and Who Should Look Elsewhere

Workstation users who need maximum ECC capacity in the Mac Pro Rack 2020 will use all four slots. Builders who need non-ECC memory or standard UDIMM form factors cannot use this kit. Systems that do not support load-reduced registered DIMMs are not compatible.

What the Bundle Changes

The matched quad-channel kit removes the risk of mixing modules with different timing or rank characteristics. Installing four identical 64GB sticks at once lets the Mac Pro Rack 2020 initialise the full 256GB configuration without manual tuning.

How it compares

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

Price $1,218.99
Pricier than about 62% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $4.76 per GB
Cheaper than about 80% 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 numberML23400-944K4
Total capacity256 GB (4 × 64 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 items256 GB (4 × 64 GB) DDR4 2933 MHz PC4-23400 4Rx4 1.2 V CL21 288-PIN ECC LRDIMM Load Reduced Server Memory KIT

Questions about this item

Does the Mac Pro Rack 2020 need all four slots filled for this 256GB kit to operate?

The kit provides four 64GB modules totalling 256GB, matching the four memory slots in the Mac Pro Rack 2020 for full capacity.

Can these 2933MHz CL21 modules run with slower DDR4 ECC LRDIMMs already in the system?

All installed modules will operate at the speed and timing of the slowest kit present.

How do I confirm the Mac Pro Rack 2020 recognises the full 256GB after installation?

Open About This Mac or System Report; it should show 256GB of DDR4 2933MHz ECC memory across four slots.

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