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Twelve green DDR4 LRDIMM sticks with gold contacts and black chips

A-Tech

A-Tech 768GB Kit (12x64GB) DDR4 2666/2667MHz ECC LRDIMM memory upgrade

SKU CH-R43K-KVRA2

12 x 64 GB DDR4 2666 MHz ECC LRDIMM kit validated for Apple Mac Pro 2019 Xeon 3.5 GHz

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Compatible systemsApple Mac Systems
  • 768GB total capacity across 12 modules for heavy multitasking
  • 64GB per module using DDR4 2666/2667MHz speed
  • ECC Load Reduced technology protects data integrity
  • Designed for Apple Mac Pro 2019 8-Core systems
  • 288-pin LRDIMM form factor fits compatible Mac Pro slots

A-Tech 768GB DDR4 ECC LRDIMM Kit

This 768GB kit contains twelve 64GB DDR4 2666/2667MHz ECC Load Reduced DIMMs built for the 2019 Apple Mac Pro 8-Core in both rack and tower configurations. It targets professionals who need maximum memory capacity for heavy multitasking and large dataset workloads on those specific workstations.

Verify Mac Pro model and processor before ordering

Confirm your system is a Mac Pro 2019 8-Core (model ID MacPro7,1) with model numbers A2304 (EMC 3413) or A1991 (EMC 3203) running the 3.5GHz Xeon W-3223 processor. The kit requires all twelve 288-pin LRDIMM slots to be populated for this capacity.

Major-brand chips with lifetime warranty and US

Modules use major-brand chips and are tested to stringent quality standards. The package includes a lifetime warranty and access to United States-based technical support before, during and after purchase.

How it compares

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

Price $2,562.99
Pricier than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $3.34 per GB
Cheaper than about 88% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Apple Mac RAM Memory Upgrades
Total capacity768 GB (12 × 64 GB)
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeLoad Reduced
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

What comes in the box and does the Mac Pro need any extra parts to install these modules?

The kit includes twelve 64GB LRDIMM modules for a total of 768GB. No extra parts are required; the modules install directly into the Mac Pro memory slots.

Should I choose the 2666MHz or 2667MHz version for my Mac Pro 2019?

Both speed ratings refer to the same PC4-21300 modules; the Mac Pro 2019 will run them at 2666MHz automatically.

What does the 2666MHz rating mean once the memory is installed in the Mac Pro?

The memory operates at DDR4 2666MHz (PC4-21300) with ECC load-reduced technology, giving the Xeon W-3223 processor 768GB of registered capacity for large workloads.

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