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Green circuit board SODIMM module with black chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR3 1866MHz 1.35V 204-Pin SODIMM for Apple iMac Late 2015 27" Retina 5K memory upgrade

SKU CH-S6XW-FW1JX

A 16 GB DDR3 SODIMM running at 1866 MHz and 1.35 V for upgrading the 27-inch iMac Retina 5K from late 2015

  • Capacity16GB
  • SpeedDDR3 1866 (PC3 14900)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.35V
  • 16GB capacity expands multitasking headroom on 27" iMac
  • DDR3 1866MHz speed matches Late 2015 factory spec
  • 35V low voltage reduces power draw and heat
  • 204-pin SODIMM form factor fits Apple iMac memory slots
  • CL13 CAS latency supports responsive system operation

16GB DDR3 1866MHz SODIMM for 27" iMac Late 2015

This 16GB module is built specifically for the Apple iMac Late 2015 27-inch Retina 5K. It runs at 1866MHz (PC3-14900) with a low 1.35V voltage and CL13 latency. The 204-pin unbuffered non-ECC design matches the factory specification for this all-in-one desktop.

Suits owners upgrading a compatible 27-inch iMac

The stick fits the single SODIMM slot in the Late 2015 27-inch Retina 5K iMac. It uses major-brand Samsung, Micron or Hynix chips and is rigorously stress-tested. Buyers with different Apple models, Windows laptops, or desktops requiring other DDR generations should look elsewhere because the pin layout, voltage, and generation will not match.

204-pin DDR3 SODIMM form factor decides fit

Only systems accepting 204-pin DDR3 SODIMM modules at 1.35V can use this memory. The physical notch position and electrical signalling are fixed by the DDR3 standard, so any machine needing a different pin count or voltage will reject the module. Verify the exact model identifier before ordering.

Highlights

  • 16GB capacity expands multitasking headroom on 27" iMac
  • DDR3 1866MHz speed matches Late 2015 factory spec
  • 35V low voltage reduces power draw and heat
  • 204-pin SODIMM form factor fits Apple iMac memory slots
  • CL13 CAS latency supports responsive system operation

Specifications

BrandNEMIX RAM
SeriesApple iMac/Mac Mini Compatible Series Memory
ModelApple DDR3 1866MHZ Non-ECC Unbuffered SODIMM
Part NumberMS14900-628LK1
Capacity16GB
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 Content16GB (1X16GB) DDR3 1866MHZ PC3-14900 2Rx8 1.35V 204-PIN Non-ECC Unbuffered SODIMM

Questions about this item

Does this 204-pin DDR3 SODIMM fit the memory slot of an iMac Late 2015 27" Retina 5K?

Yes — the module is built to the 204-pin DDR3 SODIMM form factor that the iMac Late 2015 27" Retina 5K uses for memory upgrades.

Can I keep the original 1866 MHz modules and add this 16 GB stick without speed mismatch?

The stick runs at DDR3 1866 (PC3-14900) with CL13 latency, matching the factory memory speed so the system will operate all modules at the same rate.

After installation, how do I confirm the Mac recognises the full 16 GB at 1866 MHz?

Open About This Mac → System Report → Memory; you should see a 16 GB DDR3 module listed at 1866 MHz with 1.35 V voltage.

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