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Two green DDR4 RDIMM memory modules with black chips, no heat spreaders

A-Tech

A-Tech 128GB (2x64GB) DDR4 2666MHz ECC RDIMM memory upgrade for iMac Pro 27-inch Late 2017

SKU CH-15FH-VFHGB

128 GB DDR4 2666 MHz ECC registered RDIMM kit (2×64 GB) for 27-inch iMac Pro Late 2017

  • Capacity128GB (2 x 64GB)
  • SpeedDDR4 2666 (PC4 21300)
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • Rank2S2Rx4 (4Rx4)
  • 128GB total capacity with two 64GB modules
  • DDR4 2666MHz speed rated PC4-21300
  • ECC registered design for data integrity
  • Built for iMac Pro 27-inch Late 2017
  • 20V low-voltage operation reduces power draw

128GB DDR4 ECC RDIMM for iMac Pro 2017

This kit provides 128GB of DDR4 2666MHz ECC registered memory in a 2x64GB configuration. It uses 288-pin RDIMM modules operating at 1.20V with a 2S2Rx4 rank structure. The memory is designed specifically for the Apple iMac Pro 27-inch Late 2017 model.

Suits owners of iMac Pro model A1862 EMC 3144

This upgrade targets users who require 128GB of ECC registered memory for demanding professional workloads on the supported workstation. It is not for buyers who need non-ECC unbuffered DIMMs, different speeds, or memory for other Mac models or PC platforms.

ECC registered RDIMM format is the deciding factor

The iMac Pro Late 2017 requires DDR4 2666MHz ECC registered RDIMM modules; standard unbuffered UDIMMs will not function in this system. Verify your specific model identifier iMacPro1,1 and order number MQ2Y2LL/A before purchasing this 128GB kit.

Points forts

  • 128GB total capacity with two 64GB modules
  • DDR4 2666MHz speed rated PC4-21300
  • ECC registered design for data integrity
  • Built for iMac Pro 27-inch Late 2017
  • 20V low-voltage operation reduces power draw

Caractéristiques

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity128GB (2 x 64GB)
SpeedDDR4 2666 (PC4 21300)
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2S2Rx4 (4Rx4)
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions sur cet article

Does the 288-pin RDIMM form factor fit the iMac Pro 27-inch Late 2017 memory slots?

Yes, the kit uses 288-pin DDR4 RDIMM modules that match the iMac Pro 27-inch Late 2017 memory slot specification.

What is the correct orientation when inserting the two 64GB modules into the iMac Pro slots?

Align the notch on each module with the key in the slot, press firmly until the side latches click, and install both modules for dual-channel operation.

Will the ECC registered DDR4 modules require any firmware updates or periodic replacement?

No firmware updates are needed; the ECC registered DDR4 modules are designed for continuous operation and do not have a scheduled replacement interval.

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