OWC|SKU: OWC2666DR4S128S

OWC 128GB DDR4 2666 MHz SO-DIMM 2019 iMac Compatible Memory Upgrade (4 x 32GB)

$289.99

Product highlights

  • Features a 4 x 32 GB (128 GB) density upgrade
  • 2666MHz DDR4 RAM technology
  • Requires a 1.2 voltage
  • Compatible with 2020 iMac and 2019 iMac
  • Compatible gaming laptops and PC desktops like Dell and HP
  • Fully compliant with JEDEC specifications and ROHS compliant
  • Low Noise 8-Layer PCB

In the box

  • OWC 128GB DDR4 2666 MHz SO-DIMM 2020 iMac and 2019 iMac Compatible Memory Upgrade (4 x 32GB)
  • Limited Lifetime Warranty

Free standard shipping

*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

Free Local Pickup

Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Questions? We’re Here to Help

Call or email one of our experts.

The OWC 128GB Memory Upgrade features a 4 x 32GB (128GB) density upgrade and a 2666MHz DDR4 RAM technology. It has a PC4-21300 speed and SODIMM 260-Pin technology. This product requires a 1.2 voltage and is fully compliant with JEDEC specifications and RoHS compliant. This memory upgrade is backed by OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program.

Compatible with 2020 iMac

This memory upgrade is compatible with iMac with Retina 5K display iMac20.1 and iMac20.2 (3.1GHz i5, 3.3GHz i5, 3.8GHz i7, 3.6GHz i9).

Compatible with 2019 iMac

This memory upgrade is compatible with iMac with Retina 5K display iMac19.1 (3.0GHz i5, 3.1GHz i5, 3.7GHz i5, 3.6GHz i9) and models like MRQY2LL/A, MRR02LL/A, and MRR12LL/A.

PC Compatible

It works with compatible gaming laptops and PC desktops like Dell, HP, Toshiba, ASUS, Acer, Supermicro, Fujitsu, Gigabyte, Intel, Lenovo, LG, Samsung, Sony, and Supermicro.

Shipping & Returns

  • Same Day Shipping


    All orders placed by 1PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

  • Free Standard Shipping


    We offer free standard shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).



  • Easy returns


    If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.


Frequently Asked Questions

How do I return an item?

Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.

Will I receive a full refund when I return an item?

You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.

How many days do I have to make a return?

You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 

My item was damaged in transit. How do I place a return?

If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage. 

There’s an issue with my order, what should I do?

Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.

Can I exchange an item?

We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.

If I ordered a kit, do I have to return all the items?

If you ordered a kit, you must return all components and accessories to receive a full refund.

I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?

If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.

Do you offer repairs?

We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.

What is your return policy?

Most items can be returned within 30 days for a full refund. Click here to read our full return policy.