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

A-Tech

A-Tech 384GB Kit (6x64GB) DDR4 2666 ECC RDIMM memory upgrade for Mac Pro 2019

SKU CH-9Z74-GMF0A

Six 64 GB DDR4 2666 ECC registered DIMMs totalling 384 GB for 2019 Mac Pro tower and rack models

  • Capacity384GB (6 x 64GB)
  • SpeedDDR4 2666 (PC4 21300)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor Brand Chipset
  • 384GB total capacity from six 64GB modules
  • DDR4 2666MHz PC4-21300 speed for fast data access
  • ECC Registered design detects and corrects memory errors
  • 288-pin RDIMM form factor fits Mac Pro 2019 slots
  • Compatible with MacPro7,1 and Intel Xeon W-3223 systems

384GB DDR4 2666 ECC RDIMM kit

This six-module kit delivers 384GB of DDR4 2666 ECC registered memory for the Apple Mac Pro 2019. It targets professionals who need maximum installed capacity for large datasets, virtualisation or heavy multitasking on supported Mac Pro tower and rack models.

Capacity and headroom at 384GB

Six 64GB modules fill every slot on the 2019 Mac Pro, reaching the platform limit of 384GB. Workloads such as high-resolution video timelines, scientific simulations or dozens of virtual machines benefit from the headroom, while lighter tasks will not use the full amount.

DDR4 2666 registered ECC limits

The DDR4 2666 interface caps bandwidth at PC4-21300, and the registered ECC design adds a clock cycle of latency versus unbuffered modules. Xeon W-3223 memory controllers top out at 2666 MT/s, so faster DDR4 ratings would not run at higher speeds in this system.

Points forts

  • 384GB total capacity from six 64GB modules
  • DDR4 2666MHz PC4-21300 speed for fast data access
  • ECC Registered design detects and corrects memory errors
  • 288-pin RDIMM form factor fits Mac Pro 2019 slots
  • Compatible with MacPro7,1 and Intel Xeon W-3223 systems

Caractéristiques

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity384GB (6 x 64GB)
SpeedDDR4 2666 (PC4 21300)
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions sur cet article

Will the 64 GB DDR4 2666 ECC RDIMM modules run at full speed alongside the original Apple memory in my 2019 Mac Pro?

Yes, the kit is designed for the Mac Pro 2019 and operates at DDR4 2666/2667 MHz with 1.20 V, matching the system's native memory specification.

How can I verify the 384 GB kit is recognised correctly after installation?

Open About This Mac or System Report; the memory section should show 384 GB total across the six installed modules, each reporting 64 GB DDR4 2666 ECC RDIMM.

Does the box include the six 64 GB RDIMM modules only, or are any tools or brackets supplied?

The kit contains the six 64 GB DDR4 2666 ECC RDIMM modules; no installation tools or additional brackets are included.

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