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OWC 32GB DDR4 2666 MHz SO-DIMM Memory Upgrade (2 x 16GB)

BH #OW2666D4S32P • MFR #OWC2666DDR4S32P
178 reviews
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OWC 32GB DDR4 2666 MHz SO-DIMM Memory Upgrade (2 x 16GB)
Key Features
  • 32GB (2 x 16GB) Capacity
  • 2666 MHz Clock Speed
  • PC4-21300
  • 260-Pin SO-DIMM
Boost the memory capacity of your supported Mac or Windows PC with the 32GB DDR4 2666 MHz SO-DIMM Memory Upgrade from OWC. Compatible with 260-pin SO-DIMM slots, this 32GB DDR4 memory upgrade comes in two 16GB modules and has a 2666 MHz clock speed, a bus speed of PC4-21300, and a low-noise, 8-layer PCB design. Operating at 1.2V, this memory upgrade is designed to meet or exceed Apple's and Intel's specifications.
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OWC DDR4 2666 MHz SODIMM Overview

Boost the memory capacity of your supported Mac or Windows PC with the 32GB DDR4 2666 MHz SO-DIMM Memory Upgrade from OWC. Compatible with 260-pin SO-DIMM slots, this 32GB DDR4 memory upgrade comes in two 16GB modules and has a 2666 MHz clock speed, a bus speed of PC4-21300, and a low-noise, 8-layer PCB design. Operating at 1.2V, this memory upgrade is designed to meet or exceed Apple's and Intel's specifications.

Compatibility
iMac with Retina 5K display (27", August 2020)
iMac with Retina 5K display (27", March 2019)
Mac mini (November 2018)
Select Intel and AMD processor-based PCs
UPC: 810586031370

OWC DDR4 2666 MHz SODIMM Specs

Capacity
32 GB
Kit Configuration
2x 16 GB
Speed
PC4-21300 (2666 MT/s)
Memory Type
DDR4
DIMM Type
260-Pin SO-DIMM
Voltage
1.2 V
Heat Spreader
No
Built-in LED
No
Packaging Info
Package Weight
0.1 lb
Box Dimensions (LxWxH)
6.95 x 5 x 0.5"

OWC DDR4 2666 MHz SODIMM Reviews

Wow

By Barb
Rated 5 out of 5
Date: 2025-04-21

Well, should have purchased these a long time ago. Easy to install and the performance of my iMac has improved substantially. Couldn't be more pleased...

Good Memory

By Robert
Rated 5 out of 5
Date: 2024-03-01

Works fine out of the box in my Synology DS1522+ NAS. No problems after a few weeks of use, so I would recommend.

See any errors on this page?

Will this work for the new 2019 iMac 27" base ...

Will this work for the new 2019 iMac 27" base model?
Asked by: Sian
Is there any difference between PC4-21333 and PC4-21300 and 2666MHz and 2667MHZ ? 27 inch mac come up with PC4-21333 and 2666MHz I don’t understand how’s going to be same like that?
Answered by: Zayn
Date published: 2022-12-25

Is it compatible for Synology DS1621xs+ ?

Is it compatible for Synology DS1621xs+ ?
Asked by: Bagavathikan
No, this OWC 32GB DDR4 2666 MHz SO-DIMM Memory Upgrade (2 x 16GB) would not be compatible with the Synology DS1621xs+.
Answered by: Moe
Date published: 2022-02-11

Is this compatible with the new 2020 iMac 27 5k ...

Is this compatible with the new 2020 iMac 27 5k 10 core?
Asked by: Jeannie
Yes, it uses the same memory as the 2019.
Answered by: OWC Andy
Date published: 2020-09-29

Compatible with 2020 Mac mini?

Compatible with 2020 Mac mini?
Asked by: aaren
As the 2020 Mac Mini is not user upgradeable, we would not be able to suggest this for the computer.
Answered by: Moe
Date published: 2021-06-11

How many RAM slots are there on the 2020 iMac ...

How many RAM slots are there on the 2020 iMac 27"?
Asked by: Jimbo
4
Answered by: OWC Andy
Date published: 2020-06-10

Is this compatible with a late 2013 iMac 27inch? ...

Is this compatible with a late 2013 iMac 27inch? I already have 32gb of ram but was told it’s old and needed to swap out for new ones.
Asked by: Terinna
The 2013 27" iMac can only handle up to 32GB's of RAM using 4 8GB sticks. https://www.bhphotovideo.com/c/product/1466437-REG/owc_other_world_computing_owc1600ddr3s32s_32gb_4x_8gb_pc3_12800.html
Answered by: OWC Andy
Date published: 2021-04-23

Is this ECC?

Is this ECC?
Asked by: Kaleb
Not sure - check OWC website for detail spec
Answered by: Diane
Date published: 2021-01-23

Compatible with Acer ConceptD 7 CN715-71-70LR?

Compatible with Acer ConceptD 7 CN715-71-70LR?
Asked by: Jesse
Yes, the OWC 32GB DDR4 2666 MHz SO-DIMM Memory Upgrade (2 x 16GB) is compatible with the Acer ConceptD 7 CN715-71-70LR laptop.
Answered by: Paige K
Date published: 2023-06-30
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