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Eight green circuit boards with black chips and silver connectors in a row

A-Tech

A-Tech 128GB Kit (8x16GB) DDR4 2933MHz ECC RDIMM memory upgrade

SKU CH-4SHA-47R4C

128 GB DDR4 2933 MHz ECC registered memory kit with eight 16 GB RDIMMs for 2019 Mac Pro towers and racks

  • Capacity128GB (8 x 16GB)
  • SpeedDDR4 2933 (PC4 23400)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor Brand Chipset
  • 128GB capacity with eight 16GB modules for heavy workloads
  • DDR4 2933MHz speed matches Mac Pro 2019 specifications
  • ECC registered design protects data integrity in professional tasks
  • 20V operation reduces power draw and heat output
  • Validated for Mac Pro 7,1 with Xeon W-3275M, W-3265M, W-3245, W-3235 processors

128GB DDR4 ECC RDIMM kit for Mac Pro 2019

This 128GB kit comprises eight 16GB DDR4 2933MHz registered ECC modules built for the 2019 Mac Pro in 12, 16, 24 and 28-core configurations. It targets professionals who need maximum memory capacity for virtualisation, large datasets or multi-application workloads on supported Apple workstations.

1.20V registered DDR4 at 2933MHz

The modules run at 1.20V with registered buffering and ECC error correction, which reduces electrical load on the memory controller and maintains data integrity under sustained compute tasks. Registered operation keeps signal quality stable across all eight slots during continuous high-throughput use.

288-pin RDIMM form factor with major-brand chips

Each stick uses a 288-pin RDIMM layout populated with major-brand components and validated for MacPro7,1 (A1991/EMC 3203 and A2304/EMC 3413). The registered design requires all eight slots to be populated in matched sets, so builders needing fewer than 128GB or mixed-capacity configurations must choose a different kit.

Puntos fuertes

  • 128GB capacity with eight 16GB modules for heavy workloads
  • DDR4 2933MHz speed matches Mac Pro 2019 specifications
  • ECC registered design protects data integrity in professional tasks
  • 20V operation reduces power draw and heat output
  • Validated for Mac Pro 7,1 with Xeon W-3275M, W-3265M, W-3245, W-3235 processors

Especificaciones

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity128GB (8 x 16GB)
SpeedDDR4 2933 (PC4 23400)
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Preguntas sobre este artículo

How do I install these 8 DDR4 2933MHz ECC RDIMM modules in a Mac Pro 7,1?

Power off the Mac Pro, remove the side panel, pull out the MPX module tray, then seat each 288-pin DIMM in the slots Apple specifies for 8-module population.

What maintenance or replacement will this 128GB RDIMM kit need over time?

ECC registered DDR4 modules have no moving parts; run Apple Diagnostics periodically and reseat the 288-pin sticks only if the system reports a memory error.

What limit appears first when this 128GB kit runs sustained workloads on a 2.5GHz Xeon W-3275M?

The memory controller tops out at DDR4 2933MHz, so bandwidth caps at PC4-23400 speeds before thermal throttling becomes a factor.

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