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Eight green DDR4 ECC RDIMM modules with gold contacts

A-Tech

A-Tech 128GB (8x16GB) DDR4 2666 ECC RDIMM Mac Pro 2019 memory upgrade

SKU CH-YESX-Z1D71

Eight 16 GB DDR4 2666 ECC registered DIMMs totalling 128 GB for the 2019 Mac Pro

  • Capacity128GB (8 x 16GB)
  • SpeedDDR4 2666 (PC4 21300)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor Brand Chipset
  • 128 GB total capacity from eight 16 GB modules
  • DDR4 2666 MHz speed for faster data throughput
  • ECC registered design protects against data errors
  • Optimised for Mac Pro 2019 tower and rack models
  • 20 V low voltage reduces power consumption

Compatible Mac Pro Systems

This 128GB DDR4 kit targets the Apple Mac Pro 2019 in both tower and rack configurations. It matches the MacPro7,1 model identifier and order numbers A1991 and A2304. The eight 16GB modules fill every slot for maximum supported capacity.

Who should choose other memory

Builders working on any Mac model other than the 2019 Mac Pro cannot use this registered ECC kit. Systems that require unbuffered UDIMM modules or speeds outside 2666/2667MHz need different memory.

Registered ECC DDR4 specification

Each module is a 288-pin RDIMM running at DDR4 2666 PC4-21300 with 1.20V operation. The 2Rx8 registered ECC design provides error correction required by the Xeon W-3223 platform.

Puntos fuertes

  • 128 GB total capacity from eight 16 GB modules
  • DDR4 2666 MHz speed for faster data throughput
  • ECC registered design protects against data errors
  • Optimised for Mac Pro 2019 tower and rack models
  • 20 V low voltage reduces power consumption

Especificaciones

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity128GB (8 x 16GB)
SpeedDDR4 2666 (PC4 21300)
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor Brand Chipset
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Preguntas sobre este artículo

Will this 288-pin RDIMM kit work in a Mac Pro 2019 with the 3.5 GHz Xeon W-3223 processor?

Yes, the kit is validated for Mac Pro 2019 (MacPro7,1) with the 3.5 GHz Xeon W-3223 and matches the required DDR4 2666 ECC RDIMM specification.

Can I keep the original 16 GB modules and add these eight 16 GB sticks for more capacity?

The Mac Pro 2019 has twelve DIMM slots; you can retain existing modules and populate empty slots with this 8x16 GB kit, provided all modules are ECC RDIMM at 2666 MHz.

How do I confirm the system sees all 128 GB at 2666 MHz after installation?

Open About This Mac or System Report; the Memory tab should list 128 GB total across eight 16 GB slots running at 2666 MHz DDR4 ECC.

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