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Two green DDR4 SODIMM sticks with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 2666 CL19 260-Pin SODIMM Kit

SKU CH-2MH7-8R1RX

A 64 GB DDR4 SODIMM kit with two 32 GB modules running at 2666 MT/s CL19 for compatible Apple iMac and Mac Mini systems

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 64 GB kit expands iMac or Mac Mini capacity
  • Two 32 GB SODIMMs fill both slots
  • DDR4 2666 speed matches factory specification
  • CL19 latency at 1.2 V keeps power low
  • Built with Samsung, Micron or Hynix chips

Apple iMac and Mac Mini DDR4 kit

This 64GB kit delivers two 32GB DDR4 2666 SODIMM modules built for Apple iMac and Mac Mini systems. The unbuffered non-ECC design matches the factory memory specification for these platforms. It targets owners who need the maximum supported capacity in a dual-channel configuration.

PC4-21300 speed ceiling and CL19 timing

The modules run at 2666 MT/s with a CAS latency of 19, which is the native ceiling for the DDR4 2666 standard used in these Macs. Faster DDR4 speeds will downclock to this rate, so purchasing higher-frequency sticks provides no additional bandwidth. The 1.2V operating voltage is fixed by the DDR4 specification.

260-pin SODIMM form factor without heat spreaders

Each stick uses the standard 260-pin SODIMM edge connector and lacks a heat spreader, keeping the profile low enough for the tight SO-DIMM slots in iMac and Mac Mini chassis. The 2Rx8 organisation uses major OEM chips from Samsung, Micron or Hynix. Buyers who need ECC error correction or registered buffering cannot use this kit.

How it compares

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

Price $332.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $5.20 per GB
Cheaper than about 74% 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 Non-ECC Unbuffered SODIMM
Part numberMS21300-328K2
Total capacity64 GB (2 × 32 GB)
Product type260-Pin DDR4 SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsApple
In the box
Included items64 GB (2 × 32 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 260-PIN Non-ECC Unbuffered SODIMM KIT

Questions about this item

Should I pick the 32 GB single module or the 64 GB kit with two 32 GB modules?

The kit supplies 64 GB total using two 32 GB SODIMMs, giving dual-channel bandwidth on compatible Macs.

What does the 2666 MT/s rating actually deliver inside an iMac or Mac Mini?

The modules run at DDR4-2666 with CL19 timing at 1.2 V, matching the memory controller spec for supported Apple systems.

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

The 260-pin DDR4 SODIMM form factor fits only laptops and compact desktops that accept DDR4 SO-DIMM slots.

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