OWC 1867MHZ DDR3 204-Pin SODIMM PC3-14900 ram memory for Retina 5K 27-inch Late 2015 iMac

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OWC PC3-14900 DDR3L 1867MHz SO-DIMM for 27-inch iMac w/ Retina 5K Display (Late 2015) models and compatible PCs

Memory Built by Mac People, for Mac People (and PC too), for Over 30 Years

Improve System Speed
OWC Memory is the most cost-effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential, and speed up overall responsiveness.

More Apps. More Files
Become a multi-tasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time.

Save ££ vs Factory
Save BIG vs factory memory options. Plus, select among options not offered by the factory. OWC makes it easy to find the perfect upgrade to fit your needs.

Lab Tested Compatibility
We test every OWC memory module at our in-house lab so you can upgrade with the confidence that your memory is built-to-last.

Lifetime Warranty
We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service.

Step-by-Step Videos
Our detailed install videos guide your upgrade from start to finish. We provide all the steps to make your OWC Memory upgrade DIY easy.

Available Capacity 8GB/ 16GB/ 32GB/ 48GB/ 64GB
Manufaturer part numbers OWC1867DDR3S8GB/ OWC1867DDR3S16P/ OWC1867DDR3S16G/ OWC1867DDR3S32P
Technology DDR3 SO-DIMM
RoHS Yes
Pin Count 204-pin
Op. Temp  0C to +85C
Data Rate DDR3-1867
Spee PC3-14900
CL 13 / Full Parameters: 13-13-13-14
Cycle Time 1.875ns
Voltage 1.35V
Module Ranks Dual Rank
Meets and/or Exceeds Apple/Intel Specifications Yes
JEDEC Fully Compliant with JEDEC specifications
ROHS Certified

Lifetime Warranty


iMac17,1 - A1419 (EMC 2834) Retina 5K, Late 2015

PC Compatible


  • 5

    Extra RAM

    Posted by Richard on 12th Aug 2023

    Brilliant, delivered on time, really satisfied. Thanks

  • 5

    Memory Upgrade

    Posted by Cara on 16th Jun 2021

    Bought this to breathe life into 2015 Mac and works like a charm. Very fast delivery, would use again!