Free Shipping available on most orders $49.00 & up.

Get Details. »

We're sorry, but this item is no longer for sale. However, there may be more Memory items available.

This was a used product listing. For more great deals on Open Box, Refurbished and Used items, keep an eye on our Garage Sale page. Or join our email list and be the first to know when new items become available!

We sell this item brand new for $144.99, view our listing.

16.0GB OWC Memory Upgrade Kit

2 x 8GB 2400MHZ DDR4 SO-DIMM PC4-19200

Used | OWC Tested

Memory Image
Product Specs:
  • Technology: DDR4 SO-DIMM 260 Pin
  • Density: 2 x 8GB (8192MB)
  • RoHS: Yes
  • Pin Count: 260-pin
  • Op. Temp.: 0C to +85C
  • Data Rate: DDR4-2400
  • Speed: PC4-19200
  • CL: 17
  • Voltage: 1.2V
  • ECC: Non ECC
  • Module Ranks: Single Rank
  • Low Noise 8-Layer PCB
  • Meets and/or Exceeds Apple/Intel Specifications
  • RoHS Certified
  • Free Installation Videos & Manuals
  • Warranty Safe Upgrade.
  • Why do I need more RAM?
Memory Trade in
Save money by trading in your original chips! View available memory rebates.
From the purchase date of qualifying memory from OWC, you have 60 days to trade-in your old memory for a cash rebate!
Just fill out OWC's online rebate form or contact OWC Customer Service after you receive and install your new memory.
Please note:

For the 21.5" iMac, it is strongly recommended that you purchase a memory upgrade kit designed specifically for the 21.5" iMac. This machine requires tools to open and adhesive to reseal.


This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs
iMac Intel
iMac w/Retina 5K display
(27-inch Mid 2017)
(June 2017)
Model ID:iMac18,3
3.4GHz i5, 3.5GHz i5, 3.8GHz i5, 4.2GHz i7
iMac Intel
iMac w/Retina 4K display
(21.5-inch Mid 2017)
(June 2017)
Model ID:iMac18,2
3.0GHz i5, 3.4GHz i5, 3.6GHz i7
iMac Intel
iMac (21.5-inch Mid 2017)
(June 2017)
Model ID:iMac18,1
2.3GHz i5
OWC Memory 16.0GB 2 x 8GB PC4-19200 DDR4 Kit Mfr P/N: 2400DDR4S16G OWC SKU: OWU2400DDR4S16U OWC Memory Upgrade Kit 1 Year OWC Limited Warranty
Sold Out