Top 9 2666MHz DDR4 PC4-21300 64GB – Computer Memory

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1. OWC


OWC 64GB 32GB KIT 2666MHz DDR4 PC4-21300 SO-DIMM 260 Pin Memory Upgrade, OWC2666DDR4S64P, for 2019-2020 27 inch iMac iMac19,1 iMac20,1 iMac20,2

OWC #ad - Free technical support from our expert technicians, online installation videos available, Every module is backed by OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program.

Memory upgrade compatible with 2018 mac mini: mac mini late 2018 november, 3. 0ghz i5, 2018 model id: macmini8, 1 3. 6ghz i3, 3. 2ghz i7. 64 gb 2 x 32gb kit pc4-21300 ddr4, 260-pin, 1. 2v, rohs certified, so-dimm, warranty safe memory upgrade. Memory upgrade compatible with 2020 imac: imac w/retina 5k display 27 inch mid 2020 model ID: iMac20, 2 3. 1ghz i5, 3. 8ghz i7, 3. 3ghz i5, 1 and iMac20, 3. 6ghz i9. Memory upgrade compatible with 2019 imac: imac w/retina 5k display 27-inch early 2019 Model ID: iMac19, 3. 7ghz i5, 3. 1ghz i5, 1 3. 0ghz i5, 3. 6ghz i9.
BrandOWC #ad
ManufacturerOther World Computing #ad
Part NumberOWC2666DDR4S64P



V-Color 64GB 2 x 32GB ECC SO-DIMM DDR4 2666MHz PC4-21300 2Rx8 CL19 1.2V TES432G26D819K-VC

V-COLOR COLOR YOUR LIFE #ad - 100% in house tested undergo rigorous quality control. Strictly audited dram chips with top quality 10-layers of PCBs. Limited Lifetime warranty. Especially designed for microservers, workstations, networking platforms and embedded systems. Hynix ic 64gb 2 x 32gb ddr4 2666mhz pc4-21300 cl19 ecc so-dimm 1. 2v.
Manufacturerv-color #ad



64GB 4x16GB DDR4-2666MHz PC4-21300 ECC UDIMM 2Rx8 1.2V Unbuffered Memory for Server/Workstation

NEMIXRAM #ad - Lifetime Replacement Warranty. Ecc udimm unbuffered Memory. 64gb 4x16gb. Not for desktop PC/Laptop/Notebook. Ddr4-2666mhz pc4-21300 .
ManufacturerNEMIX RAM #ad
Height1 Inches
Length6 Inches
Weight0.25 Pounds
Width1 Inches
Part NumberME21300-628K04-G

4. A-Tech Components


A-Tech 64GB 2x32GB DDR4 2666MHz SODIMM PC4-21300 2Rx8 Non-ECC CL19 1.2V 260-Pin SO-DIMM Laptop Notebook Computer RAM Memory Upgrade Kit

A-Tech Components #ad - 64gb kit 2x 32gb modules | ddr4 2666 / 2667 mhz pc4-21300 / pc4-2666v | ddr4 so-dimm 260-pin | non-ecc unbuffered | 2rx8 - Dual Rank x8 | 1. 2v - ddr4 standard Voltage.

All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory RAM specifications of your system prior to purchase to ensure compatibility. A-tech provides a lifetime warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase. High performance memory ram upgrade designed for DDR4 SODIMM compatible Laptop, Notebook, & All in One AIO computers. Boosts the performance of your system by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle greater workloads.
BrandA-Tech Components #ad
ManufacturerA-Tech Components #ad
Part NumberAT32G2D4S2666ND8N12V

5. G.Skill


G.Skill 64GB DDR4 PC4-21300 2666MHz Ripjaws V for Intel Z170/X99 CL18 Dual Channel kit 2x32GB 1.2V

G.Skill #ad - Full timings of cl18 18-18-18-43 at 1. 20v. 64gb dual channel memory kit - two matched 32GB modules. 288-pin ddr4 memory, equipped with G. Skill ripjaws V Black Heatsinks for improved heat dissipation. Ddr4 memory upgrade designed for Intel 6th Gen Core CPUs. Pc4-21300 specification, rated to operate at speeds up to 2666MHz.
BrandG.Skill #ad
ManufacturerG.Skill #ad
Weight0.29 Pounds
Part NumberF4-2666C18D-64GVK

6. Crucial


Dual Ranked Registered ECC Memory, Crucial Bundle with 64GB 2 x 32GB DDR4 PC4-21300 2666MHz RDIMM 2 x CT32G4RFD4266

Crucial #ad - Cas latency: cl19; pins: 288 Pin. Crucial 64gb ddr4 memory bundle including 2 CT32G4RFD4266 RDIMMs. Memory included: 64gb 2 x 32gb ddr4 pc4-21300 2666MHz Registered Server Memory. Compatible with most servers by brands such as Dell, Lenovo, Synology, SuperMicro, IBM, HP, and many more!.
BrandCrucial #ad
ManufacturerCrucial #ad
Part NumberRAMKit13

7. Timetec


Timetec Hynix IC 64GB KIT2x32GB DDR4 2666MHz PC4-21300 Unbuffered Non-ECC 1.2V CL19 2Rx8 Dual Rank 260 Pin SODIMM Laptop Notebook Computer Memory RAM Module Upgrade 64GB KIT2x32GB

Timetec #ad - Guaranteed – lifetime warranty from Purchase Date Free technical support. Ddr4 2666mhz pc4-21300 260 pin unbuffered non-ecc 1. 2v cl19 dual rank 2Rx8 based 1024x8. For selected ddr4 laptop / notebook PC, Mini PC, All in one Device. Power supply: vdd=1. 2v 1. 14v to 1. 26v vddq = 1. 2v 1. 14v to 1. 26v. Module size: 32gb package: 2x32GB For Laptop, Not For Desktop.
BrandTimetec #ad
ManufacturerTimetec #ad
Weight0.05 Pounds
Part Number7

8. Mushkin


Mushkin Essentials – DDR4 Laptop DRAM – 64GB 2x32GB SODIMM Memory Kit – 2666MHz PC4-21300 CL-19 – 260-pin 1.2V Notebook RAM – Dual-Channel – Low-Voltage – MES4S266KF32GX2

Mushkin #ad - 260-pin / low-voltage 1. 2v / timings: 19-19-19-43. Guaranteed – lifetime Warranty and Free Technical Support. 64gb 2x32gb sodimm ddr4-2666 pc4-21300 cl-19 laptop / Notebook Memory Kit. Compatible w/ all ddr4-2666 Laptops that support 32GB modules. Ideal for high-performance DDR4 Laptop Computers.
BrandMushkin #ad
ManufacturerMushkin Enhanced #ad
Height1.18 Inches
Length2.66 Inches
Weight0.07 Pounds
Width0.15 Inches
Part NumberMES4S266KF32GX2
WarrantyLimited Lifetime Replacement Warranty



Samsung Memory Bundle with 64GB 2 x 32GB DDR4 PC4-21300 2666MHz RDIMM 2 x M393A4K40CB2-CTD Registered Server Memory

SAMSUNG #ad - Part number per dimm: m393a4k40CB2-CTD. Samsung memory bundle with 64gb 2 x 32gb ddr4 pc4-21300 2666MHz Registered Server Memory. Cas latency: cl 19; pins: 288-Pin. Not compatible with Desktops.
BrandSAMSUNG #ad
ManufacturerSamsung #ad
Part NumberASIRAM20