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Four green DDR4 RDIMM modules with black heat spreaders and gold contacts

A-Tech

A-Tech 128GB Kit (4x32GB) DDR4 2933 ECC RDIMM Mac Pro 2019 memory upgrade

SKU CH-934F-1T6HD

128GB DDR4 2933 ECC registered kit (four 32GB modules) for 2019 Mac Pro tower and rack models with 12, 16, 24 or 28-core Xeon CPUs

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Compatible systemsApple Mac Systems
  • 128 GB total capacity across four 32 GB modules
  • DDR4 2933 MHz speed for fast data throughput
  • ECC registered design protects data integrity
  • Qualified for Mac Pro 2019 tower and rack models
  • 20 V operation reduces power draw

Mac Pro 2019 memory upgrade

This 128GB kit contains four 32GB DDR4 2933 ECC RDIMM modules built for Apple Mac Pro 2019 models with 12, 16, 24 or 28-core Xeon processors. The registered DIMMs operate at 1.20V and use major-brand chips validated for MacPro7,1 systems including A1991 and A2304 model numbers.

Who should choose this kit

Workstation users who need maximum supported memory for rendering, virtualization or large dataset workloads on a 2019 Mac Pro Tower or Rack will benefit from the full four-slot population. Buyers with Mac Pro models outside the 2019 lineup or systems that require unbuffered UDIMM memory cannot use these registered modules.

ECC RDIMM 288-pin requirement

Each module is a 2Rx4 DDR4 2933 (PC4-23400) registered DIMM with 288 pins and ECC error correction. The Mac Pro 2019 memory controller requires this exact registered ECC specification; non-ECC or unbuffered DIMMs will not function in these systems.

How it compares

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

Price $971.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.59 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Apple Mac RAM Memory Upgrades
Total capacity128 GB (4 × 32 GB)
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportYes
Buffer typeRegistered
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

Will the 288-pin RDIMM modules fit the Mac Pro 2019 memory slots?

Yes, the 288-pin DDR4 RDIMM form factor matches the Mac Pro 2019 (MacPro7,1) memory slots exactly.

What is the correct order to install the four 32 GB modules?

Populate the DIMM slots in the sequence shown in the Mac Pro memory guide — fill the first channel pair before adding the second pair.

When should the ECC registered memory be replaced?

ECC registered DDR4 modules have no scheduled replacement interval; they are replaced only if diagnostics report correctable errors or a module fails.

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