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2666MHz
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Frequency: 2666MHz » Special Offer: Free US Shipping

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Compatible System

Mac (35) PC (75)

Total Capacity

1.0TB (2) 512.0GB (5) 384.0GB (2) 256.0GB (12) 192.0GB (2) 128.0GB (22) 96.0GB (2) 64.0GB (29) 48.0GB (1) 32.0GB (26) 16.0GB (7)

Form Factor

DIMM (22) LRDIMM (18) RDIMM (37) SO-DIMM (33)

Error Correction

ECC (80) Non-ECC (30)

Registration / Buffer

Registered (40) Non-Registered (57) Load Reduced (13)

Brand

OWC (108) Apple (2)

Item Condition

New (108) Used (2)

Special Offer

Garage Sale (2)

Rating

4 and up (12)

Price

Less than $150 (2) $150 to $200 (7) $200 to $300 (18) $300 to $400 (6) $400 to $500 (9) $500 to $750 (21) $750 to $1000 (11) $1000 to $1500 (13) $1500 to $2000 (7) More than $2000 (16)
128.0GB (2 x 64GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC LRDIMM Memory Upgrade Kit for PC

128.0GB (2 x 64GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC LRDIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, ECC, LRDIMM, 288-Pin, 1.2V, 4Rx4, PC4-21300. For Servers and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2L6D44R4128P
OWC SKU: OWC2L6D44R4128P

 
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$996.98
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64.0GB (2 x 32GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC DIMM Memory Upgrade Kit for PC

64.0GB (2 x 32GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC DIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, ECC, DIMM, 288-Pin, 1.2V, 2Rx8, PC4-21300. For Workstations, Servers, and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2E6D42R8064P
OWC SKU: OWC2E6D42R8064P

 
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$594.77
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64.0GB (4 x 16GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Upgrade Kit for PC

64.0GB (4 x 16GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, ECC, RDIMM, 288-Pin, 1.2V, 2Rx4, PC4-21300. For Workstations, Servers, and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2R6D42R4064S
OWC SKU: OWC2R6D42R4064S

 
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$537.84
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128.0GB OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Module for PC

128.0GB OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Module for PC

DDR4-2666, CL19, ECC, RDIMM, 288-Pin, 1.2V, 4Rx4, PC4-21300. For Workstations, Servers, and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2R6D44R4128G
OWC SKU: OWC2R6D44R4128G

 
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$899.99
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64.0GB (2 x 32GB) OWC 2666MHz DDR4 PC4-21300 260-Pin SO-DIMM Memory Upgrade Kit for PC

64.0GB (2 x 32GB) OWC 2666MHz DDR4 PC4-21300 260-Pin SO-DIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, Non-ECC, SO-DIMM, 260-Pin, 1.2V, 2Rx8, PC4-21300. For Laptops, All-in-One Systems, and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2S6D42R8064P
OWC SKU: OWC2S6D42R8064P

 
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$479.50
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128.0GB (8 x 16GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC DIMM Memory Upgrade Kit for PC

128.0GB (8 x 16GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC DIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, ECC, DIMM, 288-Pin, 1.2V, 2Rx8, PC4-21300. For Workstations, Servers, and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2E6D42R8128K
OWC SKU: OWC2E6D42R8128K

 
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$1,249.27
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32.0GB OWC 2666MHz DDR4 PC4-21300 288-Pin ECC LRDIMM Memory Module for PC

32.0GB OWC 2666MHz DDR4 PC4-21300 288-Pin ECC LRDIMM Memory Module for PC

DDR4-2666, CL19, ECC, LRDIMM, 288-Pin, 1.2V, 4Rx4, PC4-21300. For Servers and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2L6D44R432GB
OWC SKU: OWC2L6D44R432GB

 
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$269.99
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128.0GB (4 x 32GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Upgrade Kit for PC

128.0GB (4 x 32GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, ECC, RDIMM, 288-Pin, 1.2V, 2Rx4, PC4-21300. For Workstations, Servers, and NAS Systems. Lifetime OWC Limited Warranty.

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Ships in 2-3 Days

Mfr P/N: 2R6D42R4128S
OWC SKU: OWC2R6D42R4128S

 
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$1,235.00
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16.0GB (2 x 8GB) OWC 2666MHz DDR4 PC4-21300 ECC 288-Pin RDIMM Memory Upgrade Kit for Mac

16.0GB (2 x 8GB) OWC 2666MHz DDR4 PC4-21300 ECC 288-Pin RDIMM Memory Upgrade Kit for Mac

For Mac Pro (2019) 8-Core models and other systems that utilize PC4-21300 RDIMM. Lifetime OWC Limited Warranty.

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Mfr P/N: 2666R8M16
OWC SKU: OWC2666R8M16

 
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$188.41
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Add Parallels Desktop Pro Edition for only $29.00!
32.0GB (2 x 16GB) OWC 2666MHz DDR4 PC4-21300 288-Pin DIMM Memory Upgrade Kit for PC

32.0GB (2 x 16GB) OWC 2666MHz DDR4 PC4-21300 288-Pin DIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, Non-ECC, DIMM, 288-Pin, 1.2V, 2Rx8, PC4-21300. For Desktops. Lifetime OWC Limited Warranty.

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Mfr P/N: 2U6D42R8032P
OWC SKU: OWC2U6D42R8032P

 
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$219.54
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32.0GB (2 x 16GB) OWC 2666MHz DDR4 PC4-21300 260-Pin CL17 SO-DIMM Memory Upgrade Kit for 21.5" iMac with Retina 4K Display (2019)

32.0GB (2 x 16GB) OWC 2666MHz DDR4 PC4-21300 260-Pin CL17 SO-DIMM Memory Upgrade Kit for 21.5" iMac with Retina 4K Display (2019)

For 21.5" iMac with Retina 4K Display (2019). Includes adhesive for resealing the display. Lifetime OWC Limited Warranty.

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Reviews (39)
In Stock

Mfr P/N: 2621DDR4S32P
OWC SKU: OWC2621DDR4S32P

 
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$240.52
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Add Parallels Desktop Pro Edition for only $29.00!
64.0GB (2 x 32GB) OWC 2666MHz DDR4 PC4-21300 260-pin ECC SO-DIMM Memory Upgrade Kit

64.0GB (2 x 32GB) OWC 2666MHz DDR4 PC4-21300 260-pin ECC SO-DIMM Memory Upgrade Kit

DDR4-2666, CL19, ECC, SO-DIMM, 260-pin, 1.2V, 2Rx8, PC4-21300. For Laptops, All-in-One Systems, and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2C6D41R8064P
OWC SKU: OWC2C6D41R8064P

 
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$594.77
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256.0GB (4 x 64GB) OWC PC21300 DDR4 ECC-R 2666MHz 288-Pin CL19 LRDIMM Memory Upgrade Kit for iMac Pro (2017)

256.0GB (4 x 64GB) OWC PC21300 DDR4 ECC-R 2666MHz 288-Pin CL19 LRDIMM Memory Upgrade Kit for iMac Pro (2017)

Memory upgrade kit for iMac Pro (2017). Includes screen adhesive. **Requires Professional Installation** Lifetime OWC Limited Warranty.

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Mfr P/N: DID2627DS256
OWC SKU: OWCDID2627DS256

 
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$2,101.56
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Add Parallels Desktop Pro Edition for only $29.00!
384.0GB (3 x 128GB) OWC PC21300 DDR4 ECC-R 2666MHz 288-Pin LRDIMM Memory Upgrade Kit for iMac Pro (2017)

384.0GB (3 x 128GB) OWC PC21300 DDR4 ECC-R 2666MHz 288-Pin LRDIMM Memory Upgrade Kit for iMac Pro (2017)

Memory upgrade kit for iMac Pro (2017). Includes screen adhesive. **Requires Professional Installation** Lifetime OWC Limited Warranty.

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Mfr P/N: DID2627DS384
OWC SKU: OWCDID2627DS384

 
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$2,841.82
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Add Parallels Desktop Pro Edition for only $29.00!
Limited Quantity
64.0GB OWC 2666MHz DDR4 PC4-21300 ECC 288-Pin LRDIMM Memory Module for Mac

64.0GB OWC 2666MHz DDR4 PC4-21300 ECC 288-Pin LRDIMM Memory Module for Mac

For Mac Pro (2019) 8-core models and other systems that utilize PC4-21300 LRDIMM. Lifetime OWC Limited Warranty.

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Mfr P/N: 2666D4LRE64G
OWC SKU: OWC2666D4LRE64G

$679.99
Only
$429.99
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Add Parallels Desktop Pro Edition for only $29.00!
1.0TB (8 x 128GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Upgrade Kit for PC

1.0TB (8 x 128GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, ECC, RDIMM, 288-Pin, 1.2V, 4Rx4, PC4-21300. For Workstations, Servers, and NAS Systems. Lifetime OWC Limited Warranty.

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Ships in 2-3 Days

Mfr P/N: 2R6D44R41TBK
OWC SKU: OWC2R6D44R41TBK

 
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$7,163.92
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96.0GB (6 x 16GB) OWC 2666MHz DDR4 PC4-21300 ECC 288-Pin RDIMM Memory Upgrade Kit for Mac

96.0GB (6 x 16GB) OWC 2666MHz DDR4 PC4-21300 ECC 288-Pin RDIMM Memory Upgrade Kit for Mac

For Mac Pro (2019) 8-Core models and other systems that utilize PC4-21300 RDIMM. Lifetime OWC Limited Warranty.

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Mfr P/N: 2666R1M96
OWC SKU: OWC2666R1M96

 
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$844.20
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Add Parallels Desktop Pro Edition for only $29.00!
16.0GB (2 x 8GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Upgrade Kit for PC

16.0GB (2 x 8GB) OWC 2666MHz DDR4 PC4-21300 288-Pin ECC RDIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, ECC, RDIMM, 288-Pin, 1.2V, 1Rx4, PC4-21300. For Workstations, Servers, and NAS Systems. Lifetime OWC Limited Warranty.

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In Stock

Mfr P/N: 2R6D41R4016P
OWC SKU: OWC2R6D41R4016P

 
Only
$179.44
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128.0GB (8 x 16GB) OWC 2666MHz DDR4 PC4-21300 260-Pin ECC SO-DIMM Memory Upgrade Kit for PC

128.0GB (8 x 16GB) OWC 2666MHz DDR4 PC4-21300 260-Pin ECC SO-DIMM Memory Upgrade Kit for PC

DDR4-2666, CL19, ECC, SO-DIMM, 260-Pin, 1.2V, 2Rx8, PC4-21300. For Laptops, All-in-One Systems, and NAS Systems. Lifetime OWC Limited Warranty.

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Mfr P/N: 2C6D42R8128K
OWC SKU: OWC2C6D42R8128K

 
Only
$1,249.27
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32.0GB OWC 2666MHz DDR4 PC4-21300 ECC 288-Pin RDIMM Memory Upgrade for Mac

32.0GB OWC 2666MHz DDR4 PC4-21300 ECC 288-Pin RDIMM Memory Upgrade for Mac

For Mac Pro (2019) 8-Core models and other systems that utilize PC4-21300 RDIMM. Lifetime OWC Limited Warranty.

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Mfr P/N: 2666D4MPE32G
OWC SKU: OWC2666D4MPE32G

 
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$325.49
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Add Parallels Desktop Pro Edition for only $29.00!

Showing 91 - 110 of 110 items
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