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Green circuit board SODIMM module with black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2400 CL17 260-PIN SODIMM Apple iMac 21.5" 2020 memory upgrade

SKU CH-ZBB8-SQE7V

16 GB DDR4 2400 CL17 SODIMM upgrades 21.5-inch 2020 iMac with 1.2 V modules

  • Capacity16GB
  • SpeedDDR4 2400 (PC4 19200)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB DDR4 upgrade for 21.5″ iMac 2020
  • 2400 MHz CL17 timing for responsive multitasking
  • 260-pin SODIMM fits Apple memory slot directly
  • 2 V operation keeps power draw low
  • Major-brand Samsung, Micron or Hynix chips ensure stability

16 GB DDR4 SODIMM for 2020 iMac

This 260-pin module delivers 16 GB of DDR4-2400 memory at CL17 latency and 1.2 V. It is built specifically for the 21.5-inch iMac with Retina 4K Display released in mid-2020, where the single-slot design fits the SO-DIMM compartment without modification.

Sustained workload stability

Each stick uses major OEM DRAM from Samsung, Micron or Hynix and is stress-tested under load before shipment. The unbuffered, non-ECC 2Rx8 organisation maintains consistent throughput during long rendering, compilation or virtualisation sessions without throttling or error correction overhead.

No heat spreader, direct fit

The bare green PCB slips into the factory slot without clearance issues caused by tall heat spreaders. Gold-plated edge contacts resist oxidation through repeated upgrade cycles, and the standard SODIMM keying prevents misalignment during installation.

Points forts

  • 16 GB DDR4 upgrade for 21.5″ iMac 2020
  • 2400 MHz CL17 timing for responsive multitasking
  • 260-pin SODIMM fits Apple memory slot directly
  • 2 V operation keeps power draw low
  • Major-brand Samsung, Micron or Hynix chips ensure stability

Caractéristiques

BrandNEMIX RAM
SeriesApple iMac/Mac Mini Compatible Series Memory
ModelApple DDR4 2666MHZ Non-ECC Unbuffered SODIMM
Part NumberMS19200-628K1
Capacity16GB
SpeedDDR4 2400 (PC4 19200)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemApple
CAS LatencyCL17
Heat SpreaderNo
Type260-PIN DDR4 SODIMM
Rank2Rx8
FeaturesDDR4 Non-ECC Unbuffered SODIMM Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V CL17 260-PIN Non-ECC Unbuffered SODIMM

Questions sur cet article

How much heat and power does the 1.2 V DDR4 2400 module add when the iMac runs all day?

The SODIMM operates at 1.2 V with no heat spreader, so it draws standard DDR4 power and relies on the iMac's internal airflow for cooling.

What must the 21.5-inch 2020 iMac already have for this 260-pin SODIMM to work?

An accessible SO-DIMM slot that accepts DDR4 2400 non-ECC unbuffered memory; the 2020 21.5-inch iMac with Retina 4K uses this exact interface.

Will the CL17 2Rx8 stick run alongside the original 2666 MHz memory Apple shipped in this iMac?

Yes, the module is rated DDR4 2400 CL17; the system will down-clock any faster factory RAM to 2400 MHz so both kits run in sync.

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