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

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 2666 CL19 2Rx8 SODIMM iMac 27 2019 memory upgrade

SKU CH-AKPN-7DA5P

A 128 GB kit of four 32 GB DDR4 2666 CL19 SODIMM modules designed for the 27-inch 2019 iMac

  • Capacity128GB (4 x 32GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 128GB kit expands iMac 27-inch 2019 memory to maximum capacity
  • DDR4 2666 speed matches factory specification for Early 2019 model
  • 2Rx8 dual-rank organisation improves bandwidth for heavy workloads
  • 20V low voltage reduces power draw and heat output
  • 260-pin SODIMM form factor fits iMac 19,1 memory slots directly

iMac 27-inch 2019 memory kit

This 128GB kit contains four 32GB DDR4 2666 SODIMM modules built for the Apple iMac with Retina 5K display 27-inch Early 2019 model 19,1. It targets owners who need the maximum supported capacity for intensive workloads such as video editing, virtualisation or large dataset analysis. The modules are non-ECC unbuffered and run at 1.2V.

DDR4 2666 CL19 2Rx8 SODIMM

The decisive specification is the DDR4 2666 CL19 2Rx8 260-pin SODIMM form factor matched to the iMac 19,1 memory controller. Each module uses major OEM Samsung, Micron or Hynix chips and operates at the standard 1.20V without heat spreaders. Only this exact combination of speed, latency, rank and voltage guarantees stability in the target system.

128GB capacity for heavy multitasking

Four 32GB modules fill every slot, delivering 128GB total capacity that handles multiple virtual machines, 8K timelines and massive Photoshop composites without paging. The kit reaches the architectural limit of the 2019 iMac, so no further internal expansion is possible. Users needing more memory must move to a newer platform.

Points forts

  • 128GB kit expands iMac 27-inch 2019 memory to maximum capacity
  • DDR4 2666 speed matches factory specification for Early 2019 model
  • 2Rx8 dual-rank organisation improves bandwidth for heavy workloads
  • 20V low voltage reduces power draw and heat output
  • 260-pin SODIMM form factor fits iMac 19,1 memory slots directly

Caractéristiques

BrandNEMIX RAM
SeriesApple iMac/Mac Mini Compatible Series Memory
ModelApple DDR4 2666MHZ Non-ECC Unbuffered SODIMM
Part NumberMS21300-328K4
Capacity128GB (4 x 32GB)
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 Content128GB (4X32GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN Non-ECC Unbuffered SODIMM KIT

Questions sur cet article

What does the 2666 MHz speed mean when the kit is installed in an iMac?

The modules run at DDR4 2666 (PC4-21300) and the iMac's memory controller will operate them at that rated frequency without manual tuning.

How does the 260-pin SODIMM interface limit the upgrade?

The 260-pin DDR4 SODIMM form factor is the only module type the 27-inch 2019 iMac accepts, so no other generation or pin count will fit.

What physical space is needed to seat all four 32 GB sticks?

The kit contains four 260-pin SODIMMs that occupy every available slot in the iMac's memory compartment.

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