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Four green DDR3 SODIMM sticks in a clear tray

NEMIX RAM

NEMIX RAM 32GB (4x8GB) DDR3 1600MHz 1.35V 204-Pin SODIMM Kit for iMac Retina 27" Late 2014 & Mid 2015

SKU CH-M4PP-V43PK

32 GB DDR3 kit with four 8 GB SODIMMs at 1600 MHz, 1.35 V and CL11 latency for 27-inch iMac Retina models from late 2014 and mid 2015

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL11
  • Buffer typeUnbuffered
  • Rated voltage1.35 V
  • 32 GB kit expands iMac memory for smoother multitasking
  • DDR3 1600 MHz speed matches factory specification
  • 35 V low-voltage modules reduce power draw
  • 204-pin SODIMM form factor fits iMac Retina 27" slots
  • CL11 latency timing supports responsive system operation

iMac Retina 27" Late 2014 & Mid 2015 DDR3 SODIMM Kit

This 32 GB kit contains four 8 GB DDR3 1600 MHz SODIMM modules built for Apple iMac Retina 27-inch Late 2014 and Mid 2015 systems. It uses 204-pin unbuffered non-ECC memory rated at 1.35 V with CL11 latency. The modules employ major OEM chips from Samsung, Micron or Hynix and have no heat spreader.

Sustained load behaviour with CL11 1.35 V modules

The CL11 timing and 1.35 V operating voltage keep power draw low during extended workloads such as video rendering or large dataset processing. Unbuffered non-ECC organisation means the memory controller handles refresh cycles directly, so throughput remains steady without registered-buffer overhead. Major OEM DRAM ensures consistent binning across all four sticks.

Tool-free installation behind the iMac memory door

The iMac 27-inch Late 2014 and Mid 2015 models expose four SODIMM slots behind a rear access door, allowing the kit to be installed without tools in minutes. Modules are keyed for 204-pin DDR3 sockets, preventing incorrect insertion. Builders needing ECC error correction or registered DIMMs cannot use this kit, and systems limited to 16 GB maximum capacity will not recognise the full 32 GB.

How it compares

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

Price $61.99
Cheaper than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $15.50 per GB
Pricier than about 62% 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 DDR3 1600 MHz Non-ECC Unbuffered SODIMM
Part numberMS12800-428K4
Total capacity4 GB
Product type204-Pin DDR3 SODIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL11
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.35 V
Compatibility
Compatible systemsApple
In the box
Included items32 GB (4 × 8 GB) DDR3 1600 MHz PC3-12800 2Rx8 1.35 V 204-PIN Non-ECC Unbuffered SODIMM KIT

Questions about this item

Does the 1.35V DDR3 kit run cooler than standard 1.5V memory during all-day use?

Yes, the lower 1.35V operating voltage reduces power draw and heat output compared with standard 1.5V DDR3 modules.

My iMac Retina 27" Late 2014 has four SO-DIMM slots — is that all I need to install this 32GB kit?

Correct, the kit contains four 8GB 204-pin SODIMMs that fill every slot in the Late 2014 and Mid 2015 27-inch Retina iMac.

Will the CL11 1600MHz modules work alongside any original Apple memory I keep installed?

The kit is specified at CL11 and 1600MHz; mixing different speeds or timings can cause instability, so a full 32GB replacement is recommended.

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