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Eight green DDR4 RDIMM sticks in silver antistatic bags

A-Tech

A-Tech 64GB (8x8GB) DDR4 2666 ECC RDIMM Mac Pro 2019 memory upgrade

SKU CH-9YWX-61ZZB

Eight 8 GB DDR4 2666 ECC registered modules add 64 GB to a 2019 Mac Pro tower or rack

  • Capacity64GB (8 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor Brand Chipset
  • 64 GB total capacity across eight 8 GB modules for expanded multitasking headroom
  • DDR4 2666 MHz PC4-21300 speed matches the Mac Pro 2019 memory bus
  • ECC registered RDIMM design protects data integrity on Xeon workstations
  • 288-pin RDIMM form factor fits the 2019 Mac Pro tower and rack slots
  • 20 V operation keeps power draw low for sustained workloads

Mac Pro 2019 64GB ECC kit

This 64GB kit contains eight 8GB DDR4 2666 ECC RDIMM modules built for the Apple Mac Pro 2019 tower and rack models. It targets professionals who need maximum memory capacity for virtualization, video editing or large dataset work on a Xeon W-3223 platform.

Upgrading from smaller factory configurations

The kit replaces the stock 32GB or 64GB arrangements that ship with the 8-core Mac Pro 7,1. The jump is worth it when workloads exceed the original capacity and the system shows memory pressure during rendering, compilation or multi-VM tasks.

Installing eight registered DIMMs

All eight 288-pin slots must be populated with identical 1Rx8 modules at 1.20V for correct operation. Mixing ranks or skipping slots causes boot failures; the firmware expects a full matched set across every channel.

Highlights

  • 64 GB total capacity across eight 8 GB modules for expanded multitasking headroom
  • DDR4 2666 MHz PC4-21300 speed matches the Mac Pro 2019 memory bus
  • ECC registered RDIMM design protects data integrity on Xeon workstations
  • 288-pin RDIMM form factor fits the 2019 Mac Pro tower and rack slots
  • 20 V operation keeps power draw low for sustained workloads

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity64GB (8 x 8GB)
SpeedDDR4 2666 (PC4 21300)
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions about this item

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

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

Does the Mac Pro 2019 require a specific order when installing the eight 8GB modules?

Apple recommends filling all twelve slots in sets of three channels; with eight modules, populate slots 1–8 in numerical order for correct channel balance.

How long will the ECC registered DDR4 memory last before it needs replacement?

ECC registered DDR4 has no scheduled replacement interval; it runs at 1.20V and is covered by a lifetime warranty for the original purchaser.

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