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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

  • Capacity32GB (4 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V

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.

Highlights

  • 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

Specifications

BrandNEMIX RAM
SeriesApple iMac/Mac Mini Compatible Series Memory
ModelApple DDR4 2666MHZ Non-ECC Unbuffered SODIMM
Part NumberMS21300-828K4
Capacity32GB (4 x 8GB)
SpeedDDR4 2666 (PC4 21300)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemApple
CAS LatencyCL19
Heat SpreaderNo
Type260-Pin DDR4 SODIMM
Rank2Rx8
FeaturesDDR4 Non-ECC Unbuffered SODIMM Motherboard Compatible
Package Content32GB (4X8GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN Non-ECC Unbuffered SODIMM KIT

Other versions of this model

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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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