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Two green DDR4 SODIMM modules with black chips, no heat spreaders

A-Tech

A-Tech 16GB (2×8GB) DDR4 2133 SODIMM 260-Pin for iMac 21.5 Mid 2017 memory upgrade

SKU CH-9T2Z-7WF9J

16 GB DDR4 2133 MHz SO-DIMM kit upgrades the 21.5-inch iMac (Mid 2017) with two 8 GB modules

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 2133 (PC4 17000)
  • Voltage1.20V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • Rank1Rx8
  • 16GB dual-channel kit boosts multitasking headroom
  • DDR4 2133MHz PC4-17000 matches iMac 21.5 Mid 2017 spec
  • 260-pin SODIMM form factor fits factory memory slots
  • 20V low-voltage operation reduces thermal load
  • Major-brand DRAM chips tested for Apple compatibility

Designed for iMac 21.5 Mid 2017

This 16GB kit contains two 8GB DDR4 2133 SODIMM modules built to the exact specifications of the iMac 21.5 Mid 2017 (model ID iMac18,1, order number MMQA2LL/A, EMC 3068). The 260-pin unbuffered non-ECC memory installs directly into the factory slots to restore or expand system memory.

Suits owners of the listed iMac needing a full

Buyers with a different Mac model, a desktop DIMM requirement, or a need for ECC registered memory should look elsewhere. This kit is validated only for the specific Apple systems identified in the compatibility data and will not fit other form factors.

16GB total capacity at DDR4 2133 speed

The two modules run at 1.20V with a 1Rx8 rank configuration using major brand chips. This capacity handles everyday multitasking and typical workloads on the supported iMac; systems requiring more than 16GB or higher memory speeds cannot be addressed by this kit.

Puntos fuertes

  • 16GB dual-channel kit boosts multitasking headroom
  • DDR4 2133MHz PC4-17000 matches iMac 21.5 Mid 2017 spec
  • 260-pin SODIMM form factor fits factory memory slots
  • 20V low-voltage operation reduces thermal load
  • Major-brand DRAM chips tested for Apple compatibility

Especificaciones

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity16GB (2 x 8GB)
SpeedDDR4 2133 (PC4 17000)
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Preguntas sobre este artículo

Does my iMac 21.5 Mid 2017 need any tools or existing modules removed before installing these 260-pin SODIMMs?

The iMac 21.5 Mid 2017 uses a memory compartment door on the rear; no tools are required and the two 8 GB modules simply replace any factory-installed SODIMMs.

Will these DDR4 2133 modules down-clock automatically if my iMac 18,1 originally shipped with slower memory?

Yes, the DDR4 2133 (PC4-17000) SODIMMs will run at the highest speed the iMac 18,1 memory controller supports, matching the system's native 2133 MHz specification.

How can I confirm the full 16 GB kit is recognised after installation on model A1418 (EMC 3068)?

Open About This Mac or System Report; it should show 16 GB total memory with two 8 GB DDR4 2133 SODIMMs populated in the two slots.

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