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Four green DDR4 SO-DIMM sticks with black chips in a row

Timetec

Timetec 128GB (4x32GB) DDR4 2666MHz CL19 260-Pin SO-DIMM laptop RAM for iMac 20,1 / 20,2 / 19,1

SKU CH-RE22-ND1YC

128 GB DDR4 SO-DIMM kit upgrades compatible 27-inch iMac models from 2019 and 2020 to 2666 MHz CL19 speed

  • Type260-Pin DDR4 SO-DIMM
  • 128 GB total capacity in a 4 x 32 GB kit
  • DDR4 2666 MHz CL19 at 1.2 V for fast response
  • 260-pin SO-DIMM form factor fits the 27-inch iMac slots
  • Tested for iMac 19,1, 20,1 and 20,2 model IDs
  • Lifetime warranty and free technical support included

iMac 27-inch 2019–2020 memory kit

This 128 GB kit contains four 32 GB DDR4 2666 MHz SO-DIMM modules built for the 27-inch iMac models identified as 19,1, 20,1 and 20,2. The unbuffered non-ECC memory runs at 1.2 V with CL19 timing and uses 260-pin dual-rank chips. It is supplied new and ready to install in the four available slots.

Suits owners of the listed iMacs wanting maximum

The kit fills all four slots on the 27-inch Mid 2019 and Mid 2020 Retina 5K iMacs, delivering the full 128 GB those machines accept. Builders working on Mac mini Late 2018 or any other system with only two slots should look elsewhere because this package provides four modules. Users needing ECC or registered memory will not find those features here.

260-pin DDR4 SO-DIMM form factor

Each module measures 30 mm high by 69.6 mm long and conforms to the PC4-21300/PC4-21333 standard. The 260-pin edge connector and 1.2 V operation match the electrical and mechanical requirements of the compatible iMac models. Verify your model identifier before purchase to ensure the modules will seat correctly.

Highlights

  • 128 GB total capacity in a 4 x 32 GB kit
  • DDR4 2666 MHz CL19 at 1.2 V for fast response
  • 260-pin SO-DIMM form factor fits the 27-inch iMac slots
  • Tested for iMac 19,1, 20,1 and 20,2 model IDs
  • Lifetime warranty and free technical support included

Specifications

Type260-Pin DDR4 SO-DIMM

Questions about this item

Should I pick the 128GB kit or a smaller capacity for my 27-inch iMac?

The 128GB kit fills all four slots with 32GB modules. Choose it if your iMac 19,1, 20,1 or 20,2 supports the maximum. Smaller kits leave slots free for later expansion.

What does the 2666MHz rating deliver once installed in a compatible iMac?

The modules run at 2666MHz with CL19 latency at 1.2V, matching the PC4-21300/PC4-21333 specification the iMac memory controller expects.

Does the 260-pin SO-DIMM interface limit speed or capacity in these iMacs?

The 260-pin DDR4 SO-DIMM form factor is the native slot type for the listed 2019 and 2020 27-inch iMacs, so it imposes no extra limit beyond the 2666MHz rating.

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