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NEMIX RAM

NEMIX RAM 32GB (2×16GB) DDR4 2400 CL17 SODIMM memory upgrade for Apple 21.5" iMac 4K Mid 2020

SKU CH-F22Q-YTMQ1

A 32 GB DDR4 SODIMM kit running at 2400 MT/s with CL17 latency, built for the 21.5" iMac 4K Mid 2020

  • Capacity32GB (2 x 16GB)
  • SpeedDDR4 2400 (PC4 19200)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 32 GB dual-channel kit doubles usable memory for demanding workloads
  • DDR4 2400 MT/s CL17 timing keeps latency low for responsive multitasking
  • 20 V operation reduces power draw and heat inside the compact chassis
  • 260-pin SODIMM form factor fits the 21.5" iMac 4K Mid 2020 memory slots exactly
  • Major-brand Samsung, Micron or Hynix ICs tested under load for rock-solid stability

Compatible 21.5" iMac 4K memory kit

This 32GB kit contains two 16GB SODIMM modules built for the Apple 21.5" iMac with Retina 4K Display Mid 2020. It runs at DDR4 2400 with CL17 latency and 1.2V operation. The 260-pin unbuffered non-ECC design matches the factory slot specification. Installation is a straightforward user upgrade.

Suits owners of the specified iMac model

Buyers with a different iMac size, a different year or a Mac mini should verify their exact model before purchasing. Systems that require ECC registered memory or a DIMM form factor cannot use these SODIMM modules. The kit is not intended for Windows laptops or desktop motherboards.

Deciding specification is the 260-pin DDR4 2400

The iMac Mid 2020 accepts only 260-pin DDR4 SODIMM modules at 2400MT/s with 1.2V unbuffered non-ECC signalling. A module with a different pin count, voltage, speed grade or ECC type will not fit or boot. Matching these exact parameters ensures compatibility.

Highlights

  • 32 GB dual-channel kit doubles usable memory for demanding workloads
  • DDR4 2400 MT/s CL17 timing keeps latency low for responsive multitasking
  • 20 V operation reduces power draw and heat inside the compact chassis
  • 260-pin SODIMM form factor fits the 21.5" iMac 4K Mid 2020 memory slots exactly
  • Major-brand Samsung, Micron or Hynix ICs tested under load for rock-solid stability

Specifications

BrandNEMIX RAM
SeriesApple iMac/Mac Mini Compatible Series Memory
ModelApple DDR4 2666MHZ Non-ECC Unbuffered SODIMM
Part NumberMS19200-628K2
Capacity32GB (2 x 16GB)
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 Content32GB (2X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V CL17 260-PIN Non-ECC Unbuffered SODIMM KIT

Questions about this item

Does the 21.5-inch iMac 4K Mid 2020 need any tools or extra parts to install these 260-pin SODIMM modules?

The iMac uses a memory compartment door on the rear; no tools are required beyond a soft cloth to protect the screen while you lay the computer face-down.

Will these CL17 2400 MHz sticks run at their rated speed if the original 2666 MHz Apple modules stay installed?

The iMac has only two SODIMM slots, so the 2 x 16 GB kit replaces the factory memory entirely — there is no mixing of old and new modules.

How can I confirm the 32 GB kit is detected at 2400 MHz with CL17 timings after installation?

Open About This Mac → System Report → Memory; each slot should show 16 GB DDR4 2400 MHz, and the Part Number field will list MS19200-628K2.

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