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Two green DDR4 SODIMM modules, 260-pin, no heat spreader

A-Tech

A-Tech 8GB (2x4GB) DDR4 2666MHz SODIMM 260-Pin Memory Upgrade

SKU CH-Y2ES-165CY

An 8 GB kit of two 4 GB DDR4 2666 MHz SODIMM modules designed for select 2019–2020 iMac and Mac mini models

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx16
  • 8GB dual-channel kit lets iMac and Mac mini handle heavier multitasking
  • DDR4 2666 MHz speed matches factory spec for 2019–2020 models
  • 260-pin SODIMM form factor fits Apple 21.5" and 27" iMac plus Late 2018 and Early 2020 Mac mini
  • 20 V low-voltage operation keeps power draw minimal
  • Non-ECC unbuffered 1Rx16 modules with major-brand chips tested for reliability

Apple iMac and Mac mini upgrade

This 8GB kit contains two 4GB DDR4 2666MHz SODIMM modules built for select Apple iMac and Mac mini systems from 2019 and 2020. It runs at 1.20V with unbuffered, non-ECC 1Rx16 chips and carries Apple order-number certification for the listed models.

Straightforward SODIMM installation

The 260-pin modules slot directly into the memory compartment on compatible iMac and Mac mini units without tools or firmware changes. No heat spreader is fitted, so clearance inside the slim chassis is not affected. Mixing with existing modules of different speeds or ranks may prevent booting, so matching the kit specification is advised.

Ideal for supported Mac owners needing 8GB

Owners of the specified iMac 21.5-inch 4K, iMac 27-inch 5K and Mac mini models who want a simple capacity increase will find this kit a direct fit. Buyers with other Mac generations, Windows laptops, or systems requiring ECC or registered memory should look at something else.

How it compares

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

Price $53.99
Cheaper than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.75 per GB
Cheaper than about 59% 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 (2 × 4 GB)
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx16
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple Mac Systems

Questions about this item

How can I verify the kit is running at 2666 MHz after installing it in my iMac?

Open About This Mac, click System Report, choose Memory and confirm each 4 GB module shows DDR4 2666 MHz speed and 1.20 V voltage.

What comes in the box and do I need any extra tools for a Mac mini 2018 install?

The box contains two 4 GB DDR4 260-pin SODIMM modules; no tools are required for the Mac mini 2018 memory slot.

Should I choose the 8 GB kit or a larger capacity for my 27-inch iMac 2020?

The 8 GB kit (2 × 4 GB) matches the factory slot count; select a larger kit only if your model supports more than two modules.

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