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Two green DDR4 SODIMM modules with black chips, no heat spreader, 260-pin form factor

A-Tech

A-Tech 32GB Kit (2x16GB) DDR4 2400 SODIMM 260-Pin Memory Upgrade

SKU CH-34X2-6YJ8F

Two 16 GB DDR4 2400 SODIMM modules add 32 GB to compatible 21.5‑inch and 27‑inch iMac models from 2017 and 2019

  • Capacity32GB (2 x 16GB)
  • SpeedDDR4 2400 (PC4 19200)
  • Voltage1.20V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • Rank2Rx8
  • 32 GB total capacity with two 16 GB modules
  • DDR4 2400 MHz speed for faster data transfer
  • 260-pin SODIMM form factor fits compatible iMac slots
  • Non-ECC unbuffered design with 2Rx8 rank for stable operation
  • Qualified for 2017 and 2019 iMac models including 21.5 and 27 inch sizes

32GB DDR4 2400 kit for iMac

This 32GB kit contains two 16GB DDR4 2400 SO-DIMM modules built for Apple iMac models from 2017 and 2019. It targets owners of the 21.5-inch 4K and 27-inch 5K iMacs who want more memory for multitasking and heavier workloads.

DDR4 2400 SO-DIMM limits

The modules run at 2400MHz (PC4-19200) on the 260-pin SO-DIMM interface at 1.20V. They are non-ECC unbuffered 2Rx8 parts, so they work only in systems that accept standard DDR4 SO-DIMM memory without ECC or registered buffers.

Upgrading from 8GB or 16GB

Replacing the factory 8GB or 16GB configuration with this 32GB kit removes the memory ceiling that limits concurrent apps and large files. The jump is worthwhile when your current iMac shows memory pressure during creative work, virtualisation or heavy browser use.

Points forts

  • 32 GB total capacity with two 16 GB modules
  • DDR4 2400 MHz speed for faster data transfer
  • 260-pin SODIMM form factor fits compatible iMac slots
  • Non-ECC unbuffered design with 2Rx8 rank for stable operation
  • Qualified for 2017 and 2019 iMac models including 21.5 and 27 inch sizes

Caractéristiques

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity32GB (2 x 16GB)
SpeedDDR4 2400 (PC4 19200)
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions sur cet article

Should I choose the 32GB kit or a smaller capacity for my 2017 iMac?

The 32GB kit uses two 16GB modules to fill both slots in compatible 2017 and 2019 iMac models, delivering the full 32GB maximum those systems accept.

What does the DDR4 2400 speed rating mean once installed in my iMac?

The modules run at 2400MHz (PC4-19200) with 1.20V voltage and 2Rx8 rank, matching the memory controller specification for the listed iMac models.

Will the 260-pin SODIMM interface work in my 21.5-inch or 27-inch iMac?

Yes, the 260-pin DDR4 SODIMM form factor is the correct physical and electrical interface for the specified iMac 18,2, 18,3 and 19,2 model IDs.

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