We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green circuit boards with black chips and gold edge connectors

A-Tech

A-Tech 16GB (2x8GB) DDR4 2666 SODIMM 260-Pin memory upgrade

SKU CH-RAAB-TZ1CK

16 GB DDR4 kit with two 8 GB SODIMM modules at 2666 MHz for select Apple iMac and Mac mini models

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • Voltage1.20V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • Rank1Rx8
  • 16 GB total capacity with two 8 GB modules
  • DDR4 2666 MHz speed rated PC4-21300
  • 260-pin SODIMM form factor fits compatible Macs
  • Non-ECC unbuffered 1Rx8 design for stability
  • Tested for Apple iMac and Mac mini 2018–2020 models

Mac Memory Upgrade

This 16GB kit contains two 8GB DDR4 2666 SODIMM modules built for select Apple iMac and Mac mini systems from 2018 to 2020. It targets owners of compatible models who need more capacity for everyday multitasking and heavier workloads.

Sustained Workload Behaviour

The unbuffered non-ECC modules run at 1.20V with a 1Rx8 rank configuration using major brand chips. They maintain the rated 2666 MT/s speed during extended sessions without thermal throttling or error correction overhead.

Thermals Noise and Power

Operating at the standard DDR4 1.20V keeps power draw low inside the compact Mac chassis. With no heat spreader or moving parts the kit adds no audible noise and relies on the system's existing airflow for cooling.

Highlights

  • 16 GB total capacity with two 8 GB modules
  • DDR4 2666 MHz speed rated PC4-21300
  • 260-pin SODIMM form factor fits compatible Macs
  • Non-ECC unbuffered 1Rx8 design for stability
  • Tested for Apple iMac and Mac mini 2018–2020 models

Specifications

BrandA-Tech
SeriesA-Tech DDR4 Apple Mac RAM Memory Upgrades
Capacity16GB (2 x 8GB)
SpeedDDR4 2666 (PC4 21300)
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemApple Mac Systems
FeaturesMajor Brand Chips

Questions about this item

How much power does this DDR4 2666 SODIMM kit draw at its 1.20V rating during continuous use?

The modules run at the standard DDR4 1.20V, keeping power draw low and heat output minimal inside the tight iMac or Mac mini chassis.

My iMac has empty SODIMM slots — do I need any tools or extra parts to install these 260-pin modules?

No special tools are required; the 260-pin SODIMMs press directly into the user-accessible memory slots on the supported iMac and Mac mini models.

Will this 16GB kit work alongside the original 8GB sticks that came in my 2019 iMac?

Yes, the kit matches the factory DDR4 2666 specification, so it will run compatibly with the original memory in the listed iMac and Mac mini systems.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.