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Four green DDR4 SODIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 32GB (4x8GB) DDR4 2666 CL19 SODIMM for Apple iMac 27" 5K Mid 2020 memory upgrade

SKU CH-5YRT-XS5Y9

32 GB kit of four 8 GB DDR4 2666 CL19 SODIMM modules for 27 inch 5K iMac Mid 2020

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V

Capacity 32GB 4X8GB

  • 32 GB total capacity for multitasking headroom
  • DDR4 2666 speed matches iMac 27" 5K Mid 2020 spec
  • CL19 latency at 1.2 V for stable operation
  • Four 8 GB SODIMMs fill all memory slots
  • Tested with Samsung, Micron or Hynix chips for reliability

NEMIX RAM 32GB DDR4 2666 SODIMM kit

This NEMIX RAM kit provides 32GB of DDR4 2666 memory in a matched set of four 8GB SODIMM modules. It is built specifically for the Apple 27-inch iMac with Retina 5K display from Mid 2020. The modules run at 1.20V with CL19 latency and use 260-pin unbuffered non-ECC architecture.

Suits owners of iMac 20,1

This kit fills all four slots on compatible iMac models to reach the 32GB total. It is not for users whose iMac has fewer than four accessible slots or who require ECC registered memory for server workloads. Buyers with earlier or later iMac generations should verify exact model compatibility before purchase.

260-pin DDR4 SODIMM form factor decides fit

The 260-pin DDR4 SODIMM form factor is the single specification that determines whether this kit installs in your system. Only Macs accepting 260-pin DDR4 2666 unbuffered non-ECC modules at 1.20V can use this memory. Check your model identifier against iMac 20,1 and 20,2 to confirm.

How it compares

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

Price $188.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $5.91 per GB
Cheaper than about 66% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineApple iMac/Mac Mini Compatible Series Memory
Model nameApple DDR4 2666 MHz Non-ECC Unbuffered SODIMM
Part numberMS21300-828K4
Total capacity32 GB (4 × 8 GB)
Product type260-Pin DDR4 SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple
In the box
Included items32 GB (4 × 8 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 260-PIN Non-ECC Unbuffered SODIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

What DDR4 speed and CAS latency does this 260-pin SODIMM kit run at?

The kit operates at DDR4 2666 MT/s with a CAS latency of CL19.

Does this 32 GB kit fit the 27-inch iMac 5K Mid 2020 SODIMM slots?

Yes, the four 8 GB 260-pin modules are built for the iMac 20,1 and 20,2 memory slots.

How are the modules installed, and what step do people often miss?

Power off, unplug, open the memory door, insert each module until it clicks, then reseat if the Mac does not show 32 GB.

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