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Two green circuit boards with gold contacts and black chips side by side

NEMIX RAM

NEMIX RAM 8GB (2×4GB) DDR3 1866 PC3-14900 1.35V 204-Pin SODIMM Kit for Apple iMac Late 2015 27" Retina

SKU CH-YY1Q-4VZV1

DDR3 1866 SODIMM kit adds 8 GB in matched 4 GB modules for late-2015 27-inch Retina iMac

  • Capacity8GB (2 x 4GB)
  • SpeedDDR3 1866 (PC3 14900)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.35V
  • 8GB dual-channel kit boosts multitasking on late-2015 iMacs
  • 1866 MHz DDR3 speed matches factory specification
  • Low 1.35 V operation reduces heat and power draw
  • 204-pin SODIMM form factor fits Apple 27-inch Retina slots
  • CL13 latency delivers responsive everyday performance

Apple iMac Late 2015 27" Retina memory kit

This NEMIX RAM kit supplies 8GB across two 4GB DDR3 SODIMM modules built for the Apple iMac Late 2015 27" Retina model. Each stick runs at 1866MHz with a CAS latency of 13 at 1.35V. The unbuffered, non-ECC design matches the original specification for straightforward installation.

Suits owners upgrading that specific iMac

Buyers with a different iMac year, screen size or Mac mini model should look elsewhere because the kit is validated only for the Late 2015 27" Retina system. Anyone needing ECC, registered modules or capacities beyond 8GB will not be served by this package.

Dual-module kit enables dual-channel operation

The matched pair lets the memory controller run in dual-channel mode, which can raise usable bandwidth compared with a single stick. No heat spreaders, software utilities or extra accessories are included in the box.

Highlights

  • 8GB dual-channel kit boosts multitasking on late-2015 iMacs
  • 1866 MHz DDR3 speed matches factory specification
  • Low 1.35 V operation reduces heat and power draw
  • 204-pin SODIMM form factor fits Apple 27-inch Retina slots
  • CL13 latency delivers responsive everyday performance

Specifications

BrandNEMIX RAM
SeriesApple iMac/Mac Mini Compatible Series Memory
ModelApple DDR3 1866MHZ Non-ECC Unbuffered SODIMM
Part NumberMS14900-428LK2
Capacity8GB (2 x 4GB)
SpeedDDR3 1866 (PC3 14900)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.35V
Compatible SystemApple
CAS LatencyCL13
Heat SpreaderNo
Type204-Pin DDR3 SODIMM
Rank2Rx8
FeaturesDDR3 Non-ECC Unbuffered SODIMM Motherboard Compatible
Package Content8GB (2X4GB) DDR3 1866MHZ PC3-14900 2Rx8 1.35V 204-PIN Non-ECC Unbuffered SODIMM KIT

Questions about this item

My iMac Late 2015 27" Retina has two slots — will this 2×4 GB kit fill them completely?

Yes — the kit provides two 204-pin SODIMMs totalling 8 GB, matching the two-slot layout of that iMac model.

Can I keep the original 1.5 V DDR3 modules and add these 1.35 V sticks alongside them?

Mixing 1.5 V and 1.35 V DDR3 is not recommended; the system will run all modules at the higher voltage, so replace the old pair with this kit instead.

After installing the kit, what should macOS System Report show for speed and voltage?

System Report will list each module as 4 GB DDR3 at 1866 MHz with a voltage of 1.35 V, confirming the kit is recognised correctly.

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