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Four green SODIMM sticks with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 32GB (4×8GB) DDR4 2400MHz CL17 SODIMM for Apple iMac 2017 27" Retina 5K memory upgrade

SKU CH-S608-AQZYC

32 GB kit of four 8 GB DDR4 2400 MHz SODIMMs for upgrading 2017 27-inch Retina 5K iMacs

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL17
  • Buffer typeUnbuffered
  • Rated voltage1.2 V

Capacity 32GB 4X8GB

  • Designed for 2017 27" iMac Retina 5K compatibility
  • 32GB kit using four 8GB DDR4 2400MHz modules
  • Low 1.20V voltage reduces system power draw
  • CL17 latency supports responsive multitasking performance
  • 260-pin SODIMM form factor fits Apple all-in-one slots

iMac 2017 27" memory kit

This 32 GB kit contains four 8 GB DDR4 SODIMM modules built for the 2017 27 inch iMac with Retina 5K display. It targets owners who need more headroom than the factory configuration provides and want a straightforward, solder-free upgrade path.

32 GB at DDR4 2400 CL17

The kit runs at 2400 MT/s with CAS latency 17 and 1.2 V, matching the iMac's native memory controller specification. Four populated slots leave no empty sockets for future expansion, so the 32 GB ceiling is fixed unless all modules are replaced.

260-pin SODIMM form factor

Modules fit the iMac's SO-DIMM slots directly and require no heat spreader or additional clearance. The unbuffered non-ECC design matches the platform's memory architecture, and the 1.2 V operation keeps power draw within the system's original thermal envelope.

How it compares

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

Price $164.99
Cheaper than about 60% 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 $5.16 per GB
Cheaper than about 75% 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 ECC Unbuffered SODIMM
Part numberMS19200-818K4
Total capacity32 GB (4 × 8 GB)
Product type260-PIN DDR4 SODIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL17
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple
In the box
Included items32 GB (4 × 8 GB) DDR4 2400 MHz PC4-19200 2Rx8 1.2 V CL17 260-PIN Non-ECC Unbuffered SODIMM KIT

Other versions of this model

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Questions about this item

Will these 2400 MHz SODIMMs run reliably alongside the original 2666 MHz modules in my 27-inch 2017 iMac?

The kit is rated at 2400 MHz CL17; when mixed with faster modules the system will down-clock all sticks to the lowest common speed, so stability is maintained but peak bandwidth drops to the 2400 MHz level.

How can I verify the 32 GB kit is recognised at the correct 2400 MHz CL17 settings after installation?

Open About This Mac → System Report → Memory; each slot should show an 8 GB DDR4 SODIMM at 2400 MHz with CAS latency 17 and 1.20 V.

Does the package contain only the four 8 GB SODIMMs or are tools and thermal pads included?

The box holds the four 260-pin DDR4 SODIMMs and nothing else; no screwdrivers, spudgers or heat-spreader pads are supplied.

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