Best Owc 2666mhz Ecc RAM Deals of Nov 2026

Updated November 10, 2026Our site contains affiliate links for which we may be compensated.

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OWC

OWC 16GB Memory RAM Kit Compatible with Synology DiskStation DS723+ DS923+ | 16GB (2x8GB) PC4-21300 DDR4 2666MHz ECC Unbuff 1Rx8 CL19 260-pin SODIMM

OWC 16GB UPGRADE: Consists of 2pcs of 8GB DDR4 2666MHz PC4-21300 CL19 1RX8 ECC SO-DIMM 1.2V 260-pin Memory Modules Compatible with Synology part numbers D4ES01-8G

Compatible with Synology NAS DiskStation, RackStation, FlashStation, & NVR DVA Servers models: DS1522+, DS1618+, DS1621+, DS1621xs+, DS1819+, DS1821+, DS2419+, DS2419+II, DS2422+, DS3018xs, DS3617xs, DS3617xsII, DS3622xs+, DVA3219, DVA3221, FS1018, RS1221+, RS1221RP+, RS822+, RS822RP+

INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance of Your Server, Micro Server or NAS System

INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

EASY INSTALLATION: In Most Cases Installing Memory is an Easy DIY project. Watch our OWC Basic Installation Video for help.

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OWC

OWC 16GB DDR4 2666MHz ECC UDIMM 288-pin Memory RAM | PC4-21300, ECC Unbuffered, 2Rx8, 1.2V, CL19, Compatible with Select Workstations, Servers, and NAS Systems

OWC 16GB UPGRADE: Consists of a single 16GB DDR4 2666MHz PC4-21300 CL19 2RX8 ECC Unbuffered DIMM 1.2V 288-pin Memory Module

100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed all Manufacturer OEM Specs

INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost your PC's Performance

INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

Works with Desktop, Workstation and Servers like: PowerEdge, Precision, StoreEasy, ProLiant, Apollo, ThinkServer, ThinkStation, ThinkSystem, System X and more

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OWC

$21 Savings

OWC 32GB DDR4 2666MHz ECC SODIMM 260-pin Memory RAM | PC4-21300, ECC Unbuffered, 2Rx8, 1.2V, CL19, Compatible with Select Laptops, All-in-One Systems, and NAS Systems

OWC 32GB UPGRADE: Consists of a single 32GB DDR4 2666MHz PC4-21300 CL19 2RX8 ECC SO-DIMM 1.2V 260-pin Memory Module

100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed all Manufacturer OEM Specs.

INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance of Your Server, Micro Server or NAS System

INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

EASY INSTALLATION: In Most Cases Installing Memory is an Easy DIY project. Watch our OWC Basic Installation Video for help.

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OWC

OWC 32GB Memory RAM Kit Replacement for Synology D4ECSO-2666-16G | 32GB (2x16GB) PC4-21300 DDR4 2666MHz ECC Unbuff 2Rx8 CL19 260-pin SODIMM, Also Replaces Synology D4ES01-16G

OWC 32GB UPGRADE: Consists of 2pcs of 16GB DDR4 2666MHz PC4-21300 CL19 2RX8 ECC SO-DIMM 1.2V 260-pin Memory Modules

Compatible for Synology NAS DiskStation, RackStation, FlashStation, & NVR DVA Servers models: DS1522+, DS1618+, DS1621+, DS1621xs+, DS1819+, DS1821+, DS2419+, DS2419+II, DS2422+, DS3018xs, DS3617xs, DS3617xsII, DS3622xs+, DVA3219, DVA3221, FS1018, RS1221+, RS1221RP+, RS822+, RS822RP+

INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance of Your Server, Micro Server or NAS System

INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

EASY INSTALLATION: In Most Cases Installing Memory is an Easy DIY project. Watch our OWC Basic Installation Video for help.

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OWC

OWC 16GB Memory RAM Compatible with Synology DiskStation DS1522+ | 16GB PC4-21300 DDR4 2666MHz ECC Unbuff 2Rx8 CL19 260-pin SODIMM

OWC 16GB UPGRADE: Consists of a single 16GB DDR4 2666MHz PC4-21300 CL19 2RX8 ECC SO-DIMM 1.2V 260-pin Memory Module Compatible with Synology part numbers D4ECSO-2666-16G, D4ES01-16G

INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance of Your Server, Micro Server or NAS System

INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

EASY INSTALLATION: In Most Cases Installing Memory is an Easy DIY project. Watch our OWC Basic Installation Video for help.

Details & specs

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OWC

OWC 8GB Memory RAM Compatible with Synology DiskStation DS723+ DS923+ | 8GB PC4-21300 DDR4 2666MHz ECC Unbuff 1Rx8 CL19 260-pin SODIMM

OWC 8GB UPGRADE: Consists of a single 8GB DDR4 2666MHz PC4-21300 CL19 1RX8 ECC SO-DIMM 1.2V 260-pin Memory Module Synology part numbers D4ES01-8G

INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance of Your Server, Micro Server or NAS System

INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

EASY INSTALLATION: In Most Cases Installing Memory is an Easy DIY project. Watch our OWC Basic Installation Video for help.

Details & specs

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on Amazon.com

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OWC

OWC 32GB (2x16GB) DDR4 2666MHz ECC UDIMM 288-pin Memory RAM | PC4-21300, ECC Unbuffered, 2Rx8, 1.2V, CL19, Compatible with Select Workstations, Servers, and NAS Systems

OWC 32GB UPGRADE: Consists of 2pcs of 16GB DDR4 2666MHz PC4-21300 CL19 2RX8 ECC Unbuffered DIMM 1.2V 288-pin Memory Modules

100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed all Manufacturer OEM Specs

INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost your PC's Performance

INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

Works with Desktop, Workstation and Servers like: PowerEdge, Precision, StoreEasy, ProLiant, Apollo, ThinkServer, ThinkStation, ThinkSystem, System X and more

Details & specs

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Our #1 Pick Today

OWC

OWC 16GB Memory RAM Kit Compatible with Synology DiskStation DS723+ DS923+ | 16GB (2x8GB) PC4-21300 DDR4 2666MHz ECC Unbuff 1Rx8 CL19 260-pin SODIMM

OWC 16GB UPGRADE: Consists of 2pcs of 8GB DDR4 2666MHz PC4-21300 CL19 1RX8 ECC SO-DIMM 1.2V 260-pin Memory Modules Compatible with Synology part numbers D4ES01-8G

INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance of Your Server, Micro Server or NAS System

INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing

EASY INSTALLATION: In Most Cases Installing Memory is an Easy DIY project. Watch our OWC Basic Installation Video for help.

Details & specs

Check Price

on Amazon.com

Compare

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7 Owc 2666mhz Ecc RAM deals are available from: Amazon, starting from $74.99.

The biggest discount we found is 5% on OWC 16GB DDR4 2666MHz ECC UDIMM 288-pin Memory RAM | PC4-21300, ECC Unbuffered, 2Rx8, 1.2V, CL19, Compatible with Select Workstations, Servers, and NAS Systems (OWC2E6D42R816GB) at Amazon.

The lowest price we found is $74.99 while the highest is $313.89. Prices for the best Owc 2666mhz Ecc RAM deals average at $203.62.