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Green circuit board with black memory chips, 260-pin SODIMM form factor, no heat spreader

A-Tech

A-Tech 8GB DDR4 2666MHz SODIMM 260-Pin memory upgrade

SKU CH-0E7R-28G8R

8GB DDR4 2666MHz SODIMM module upgrades select Apple iMac and Mac mini models from 2018 to 2020

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 8GB capacity expands multitasking headroom for demanding workloads
  • DDR4 2666MHz speed accelerates application loading and responsiveness
  • 260-pin SODIMM form factor fits compatible iMac and Mac mini models
  • Non-ECC unbuffered design ensures stable operation in supported Apple systems
  • Tested with major-brand chips for reliable performance

8GB DDR4 2666MHz SODIMM for Apple Mac

This 8GB DDR4 2666MHz SODIMM module is built for compatible Apple iMac and Mac mini systems from 2019 and 2020. It uses a 260-pin form factor and operates at 1.20V without ECC or buffering. The single-rank 1Rx8 design fits the memory slots in the listed iMac 21.5-inch, iMac 27-inch and Mac mini models.

DDR4 2666MHz speed ceiling on supported Macs

The DDR4 2666MHz interface sets the maximum data rate for this upgrade. Systems that officially support DDR4 2666 will run the module at that speed; Macs limited to a lower memory bus will downclock it automatically. No manual configuration is required because the module follows standard JEDEC timings for PC4-21300 operation.

8GB capacity adds headroom for everyday workloads

An 8GB module doubles the base memory on many entry-level configurations, allowing smoother multitasking with browser tabs, office suites and creative apps. Workloads that exceed the installed capacity will still rely on swap storage, so professionals handling large video timelines or virtual machines may need additional modules where the chassis permits.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $48.99
Cheaper than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.12 per GB
Cheaper than about 64% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR4 Apple Mac RAM Memory Upgrades
Total capacity8 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

Should I pick the 8 GB module or a different capacity for my 2019 iMac?

This listing is a single 8 GB SODIMM; the iMac 2019 and 2020 models accept two modules, so you can add one now and a second later to reach 16 GB total.

What does the 2666 MHz rating deliver inside a real Mac mini 2018?

The module runs at 2666 MT/s with 1.20 V, giving the Mac mini its maximum supported memory bandwidth for faster app loading and smoother multitasking.

How does the 260-pin DDR4 SO-DIMM interface limit performance?

The 260-pin DDR4 SO-DIMM slot caps the data rate at 2666 MT/s (PC4-21300), so this module already hits the ceiling the Mac’s memory controller allows.

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