Best Owc2666r1m128 Deals of Nov 2026

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

OWC Memory 128GB (8X 16GB) DDR4 ECC CL21 PC4-21300 2666MHz RAM | 288-Pin Compatible with 2019 Mac Pro 8-Core (Model ID: MacPro7,1)

OWC 128.0GB UPGRADE: Consists of Eight 16GB DDR4 2666MHz PC4-21300 CL19 ECC Registered DIMMs 1.2V 288-pin Memory Module with Mac qualified Thermal Sensor EEPROM
100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed All MAC Specifications for Mac Pro 2019 7,1 Tower and Rack
COMPATIBLE PART NUMBERS: , CT32G4RFD4266, CT16G4RFD4266, CT64G4YFQ426S, HMA82GR7CJR8N-VK, HMA82GR7AFR8N-VK, HMA84GR7CJR4N-VK, HMAA8GR7A2R4N-VN, M393A8G40MB2-CTD, M393A4K40BB2-CTD, M393A4K40CB2-CTD
COMPATIBLE WITH: 2019 Mac Pro 8-Core (Model ID: MacPro7,1) and 2017 iMac Pro 8-Core (model ID 1,1)
INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance in Your Mac Pro
INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing
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OWC

OWC 128GB (4x32GB) DDR4 3200MHz Non-ECC DIMM 288-pin Memory RAM | PC4-25600, Non-ECC Unbuffered, 2Rx8, 1.2V, CL22, Compatible with Select Desktops

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OWC

$24 Savings

OWC Memory 32GB (2X 16GB) DDR4 PC4-19200 2400MHz RAM | 288-Pin Compatible with 27 and 21.5 iMac (Mid 2017), PCs and with MP7N2G/A

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OWC

30 Day Low Price

OWC Memory 16GB DDR4 PC4-21300 2666MHz SO-DIMM RAM | 260-Pin Compatible with Mac mini 2018, iMac 2019 and up, and Compatible PCs

OWC 16.0GB UPGRADE: Consists of a 16GB 2666MHz DDR4 PC4-21300 SODIMM 260-Pin, 1.2 Volts, Non-registered, Non-ECC, Fully compliant with JEDEC specifications, ROHS compliant, warranty safe upgrade; Backed by OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program
COMPATIBLE WITH: 2020 iMac: iMac w/Retina 5K display (27 inch mid 2020) Model ID: iMac20,1 and iMac20,2 (3.1GHz i5, 3.3GHz i5, 3.8GHz i7, 3.6GHz i9)
COMPATIBLE WITH: 2019 iMac: iMac w/Retina 5K display (27-inch Early 2019) Model ID: iMac19,1 (3.0GHz i5, 3.1GHz i5, 3.7GHz i5, 3.6GHz i9) Models: MRQY2LL/A, MRR02LL/A, MRR12LL/A
COMPATIBLE WITH: 2018 Mac mini: Mac mini (Late 2018) (November, 2018) Model ID: Macmini8,1 (3.6GHz i3, 3.0GHz i5, 3.2GHz i7) Models: MRTR2LL/A, MRTT2LL/A
COMPATIBLE WITH: PC gaming laptops and PC desktops: Dell, HP , Toshiba, ASUS, Acer, Supermicro, Fujitsu, Gigabyte, Intel, Lenovo, LG, Samsung, Sony, Supermicro
COMPATIBLE PART NUMBERS: CT16G4S266M, CT2K16G4S266M, KCP426SD8/16, KCP426SS8/16, M471A2K43BB1‐CTD, M471A2K43CB1‐CTD, M471A2K43DB1‐CTD, M474A2K43DB1‐CTD, CT16G4SFS8266, HMA82GS6CJR8N‐VK
INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing
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OWC

$47 Savings

OWC 64GB (4x16GB) DDR4 2400MHz Non-ECC DIMM 288-pin Memory RAM

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OWC

OWC Memory 128GB (4X 32GB) DDR3 ECC Registered CL9 PC3-10600 1333MHz RAM | 240-Pin Compatible with Mac Pro (Late 2013 - 2019) Mac Pro 6,1 Models

OWC 128.0GB UPGRADE: Consists of a Four 32GB DDR3 1333MHz PC3-10600 CL9 ECC Registered DIMMs 1.5V 240-pin Memory Module with Mac qualified Thermal Sensor EEPROM
100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed All MAC Specifications for Mac Pro 2013 6,1
COMPATIBLE PART NUMBERS: MT72KSZS4G72PZ‐1G1, HMT84GR7BMR4A‐H9, M393B4G70BM0‐YH9, MT72KSZS4G72PZ‐1G4, HMT84GR7MMR4A‐H9, HMT84GR7AMR4A‐H9, M393B4G70DM0‐YH9
COMPATIBLE WITH: Mac Pro Late 2013 Model ID: MacPro6,1 3.7GHz 4-Core Xeon & 3.5GHz 6-Core Xeon & 3.0GHz 8-Core Xeon & 2.7GHz 12-Core Xeon
INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance in Your Mac Pro
INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing
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OWC

OWC 256GB Memory RAM Kit Compatible with Cisco UCS B200 M6 C125 M5 C220 M6

ECC REGISTERED UPGRADE: This type of memory is used in Workstations and Servers. It will NOT be compatible with standard desktop computers. Also, it cannot be mixed with UNBUFFERED -or- ECC LOAD REDUCED memory.
OWC 256GB UPGRADE: Consists of 4pcs of 64GB DDR4 3200 PC4-25600 CL22 2Rx4 288-pin 1.2V ECC Registered DIMM Memory RAM Module Upgrade compatible with Cisco UCS models B200 M6, C125 M5, C220 M6, C240 M6 And C245 M6.
INDUSTRY LEADING: Consumer-friendly Advanced Replacement Program and Limited Lifetime Warranty, which includes Free Tech Support by Other World Computing.
MAXIMIZE YOUR SERVER: With OWC's ECC Registered Server Memory, you will extend the life of your old infrastructure or save money when building a new one.
Replacement for Cisco part numbers UCS‐MR‐X64G2RW, UCS-MR-X64G2RW-M and UCSX‐MR‐X64G2RW.
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Our #1 Pick Today
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OWC

OWC Memory 128GB (8X 16GB) DDR4 ECC CL21 PC4-21300 2666MHz RAM | 288-Pin Compatible with 2019 Mac Pro 8-Core (Model ID: MacPro7,1)

OWC 128.0GB UPGRADE: Consists of Eight 16GB DDR4 2666MHz PC4-21300 CL19 ECC Registered DIMMs 1.2V 288-pin Memory Module with Mac qualified Thermal Sensor EEPROM
100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed All MAC Specifications for Mac Pro 2019 7,1 Tower and Rack
COMPATIBLE PART NUMBERS: , CT32G4RFD4266, CT16G4RFD4266, CT64G4YFQ426S, HMA82GR7CJR8N-VK, HMA82GR7AFR8N-VK, HMA84GR7CJR4N-VK, HMAA8GR7A2R4N-VN, M393A8G40MB2-CTD, M393A4K40BB2-CTD, M393A4K40CB2-CTD
COMPATIBLE WITH: 2019 Mac Pro 8-Core (Model ID: MacPro7,1) and 2017 iMac Pro 8-Core (model ID 1,1)
INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost the Performance in Your Mac Pro
INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing
Details & specs
Check Price
on Amazon.com
Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

10 Owc2666r1m128 deals are available from: Amazon, starting from $89.63.

The biggest discount we found is 9% on OWC Memory 16GB DDR4 PC4-21300 2666MHz SO-DIMM RAM | 260-Pin Compatible with Mac mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S16G) at Amazon.

The lowest price we found is $89.63 while the highest is $2,310.68. Prices for the best Owc2666r1m128 deals average at $740.04.