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OWC 16GB DDR4 2666 MHz SO-DIMM Memory Upgrade (1 x 16GB)

BH #OW2666D4S16G • MFR #OWC2666DDR4S16G
175 reviews
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OWC 16GB DDR4 2666 MHz SO-DIMM Memory Upgrade (1 x 16GB)
Key Features
  • 16GB (1 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 16GB DDR4 2666 MHz SO-DIMM Memory Upgrade from OWC. Compatible with 260-pin SO-DIMM slots, this 16GB DDR4 memory upgrade 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.
In Stock
$38.49
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Capacity
8GB (1 x 8GB)
16GB (1 x 16GB)
16GB (2 x 8GB)
32GB (1 x 32GB)
32GB (2 x 16GB)
64GB (2 x 32GB)
128GB (4 x 32GB)
96GB (2 x 32GB + 2 x 16GB)
32GB (4 x 8GB)
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OWC DDR4 2666 MHz SO-DIMM Overview

Boost the memory capacity of your supported Mac or Windows PC with the 16GB DDR4 2666 MHz SO-DIMM Memory Upgrade from OWC. Compatible with 260-pin SO-DIMM slots, this 16GB DDR4 memory upgrade 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: 810586031349

OWC DDR4 2666 MHz SO-DIMM Specs

Capacity
16 GB
Kit Configuration
1x 16 GB
Speed
PC4-21300 (2666 MHz)
Memory Type
DDR4
DIMM Type
260-Pin SO-DIMM
Voltage
1.2 V
Heat Spreader
No
Built-in LED
No
Packaging Info
Package Weight
0.095 lb
Box Dimensions (LxWxH)
6.2 x 3.9 x 0.3"

OWC DDR4 2666 MHz SO-DIMM Reviews

See any errors on this page? Let us know

Is it compatible with QNAP TVS-872XT 8-Bay NAS ...

Is it compatible with QNAP TVS-872XT 8-Bay NAS Enclosure?
Asked by: Arun
We have not tested it, but the specs do match.
Answered by: OWC Andy
Date published: 2020-11-25

I have a 27" 2020, 3.8GHz, 8 Core Intel core i7 ...

I have a 27" 2020, 3.8GHz, 8 Core Intel core i7 with 16 GB 2667 MHz DDR4. Can I upgrade to 32 GB?
Asked by: peter
Yes, the OWC 16GB DDR4 2666 MHz SO-DIMM Memory Upgrade (1 x 16GB) BH #OW2666D4S16G is compatible with the iMac 27'' 2020. We offer the 32GB kit: OWC 32GB DDR4 2666 MHz SO-DIMM Memory Upgrade (2 x 16GB) BH #OW2666D4S32P
Answered by: Miguel M
Date published: 2021-06-10

Is it the same 64 gb kit that can be used in the ...

Is it the same 64 gb kit that can be used in the 2018 Mac mini?
Asked by: Tom
This memory is compatible with the Late 2018 Mac mini. The link that you provide is for 2 X 32GB sticks, the community answer is not correct.
Answered by: OWC Andy
Date published: 2020-04-03

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

Hello, Does B&H offer installation services for ...

Hello, Does B&H offer installation services for mac mini memory upgrade? is B&H an Apple Authorized Service Provider?
Asked by: Eric
We do not offer RAM installation on the Mac Mini, only for the iMac which is a much simpler procedure.
Answered by: Miguel M
Date published: 2020-09-29

Hi, is this compatible with Imac 27' 19.1 2019 ...

Hi, is this compatible with Imac 27' 19.1 2019 with radeon pro 570x 4gb ?
Asked by: farid
Yes, it is compatible with the 19,1.
Answered by: OWC Andy
Date published: 2021-02-08

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

Can I add a 32G to an iMac27 - Can I use this 32G ...

Can I add a 32G to an iMac27 - Can I use this 32G without removing the original 16G memories in the new (2020) iMac 27? Will the two kinds work?
Asked by: Marina
Yes, it will work fine.
Answered by: OWC Andy
Date published: 2020-12-08
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