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Two green DDR4 RDIMM modules, 288-pin, silver heatsinks

A-Tech

A-Tech 128GB Kit (2x64GB) DDR4 2666 ECC RDIMM 288-Pin memory upgrade for Apple Mac Pro 2019 8-Core

SKU CH-Z1TJ-9K1G5

128 GB DDR4 2666 ECC registered RDIMM kit with two 64 GB modules for the 2019 Mac Pro 8‑Core

  • Capacity128GB (2 x 64GB)
  • SpeedDDR4 2666 (PC4 21300)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor Brand Chipset
  • 128 GB capacity with two 64 GB modules for heavy workloads
  • DDR4 2666 MHz speed matching Mac Pro 2019 specifications
  • ECC registered design protects data integrity in professional tasks
  • 288-pin RDIMM form factor fits Apple Mac Pro 8-Core systems
  • 20 V low-voltage operation reduces power draw and heat

128 GB ECC RDIMM kit for Mac Pro 2019

This 128 GB kit contains two 64 GB DDR4 2666 registered DIMMs built for the Apple Mac Pro 2019 8-Core tower and rack models. Each module runs at 1.20 V and uses ECC registered chips to protect data integrity in professional workloads. The kit matches the MacPro7,1 platform and supports the 3.5 GHz Xeon W-3223 processor.

Check Mac Pro model and slot layout

Verify that your Mac Pro is the 2019 8-Core version with model identifiers A2304 or A1991 and MacPro7,1 before ordering. The system uses 288-pin RDIMM slots and requires registered ECC modules; unbuffered or non-ECC memory will not work. Ensure the two modules populate the correct channels as shown in the Apple service guide for this configuration.

Sustained load stability with registered ECC

Registered buffering and ECC correction keep error rates low during long render, simulation or virtualization sessions. The DDR4 2666 speed delivers consistent bandwidth without the timing drift seen in unbuffered kits under continuous thermal load. This kit is not for users who need higher capacity than 128 GB or who plan to mix module densities in the same Mac Pro.

Puntos fuertes

  • 128 GB capacity with two 64 GB modules for heavy workloads
  • DDR4 2666 MHz speed matching Mac Pro 2019 specifications
  • ECC registered design protects data integrity in professional tasks
  • 288-pin RDIMM form factor fits Apple Mac Pro 8-Core systems
  • 20 V low-voltage operation reduces power draw and heat

Especificaciones

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity128GB (2 x 64GB)
SpeedDDR4 2666 (PC4 21300)
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Preguntas sobre este artículo

What comes in the 128GB kit and is anything else needed for installation?

The kit contains two 64GB DDR4 2666 ECC RDIMM modules. No extra parts are required; they install directly into the Mac Pro 2019 memory slots.

Should I choose the 2666 MHz or 2667 MHz rating for my Mac Pro 2019 8‑Core?

Both ratings refer to the same PC4‑21300 specification; the Mac Pro 2019 8‑Core (MacPro7,1) with the 3.5GHz Xeon W‑3223 runs the memory at 2666 MHz.

How does the 2666 MHz speed affect real‑world performance in the Mac Pro 2019?

The modules operate at the system's native 2666 MHz, delivering the full PC4‑21300 bandwidth with ECC registered reliability for demanding workloads.

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