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Two green circuit boards with gold edge connectors and black memory chips

OWC

OWC 64GB (2x32GB) DDR4 2666MHz CL19 260-pin SODIMM laptop RAM

SKU CH-RGZ3-8SGRF

A 64GB dual-channel DDR4 2666MHz SODIMM kit with CL19 latency and 1.2V operation for laptops and NAS systems

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latency19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • 64GB dual-channel kit expands multitasking headroom for demanding workloads
  • DDR4 2666MHz CL19 1.2V modules run at standard JEDEC speeds and voltage
  • 260-pin SODIMM form factor fits laptops, all-in-ones, mini desktops and NAS units
  • Backwards compatible with 2400MHz and 2133MHz systems for flexible upgrades
  • JEDEC and RoHS compliant design tested to meet OEM specifications

What this kit provides

This OWC kit delivers 64GB of DDR4 laptop memory as two 32GB SODIMM modules rated at 2666MHz with CL19 latency. It runs at the standard 1.2V and uses the 260-pin unbuffered non-ECC form factor. The dual-channel kit is designed for laptops, all-in-one PCs, mini desktops, micro servers and NAS devices.

Who it suits and who it does not

Builders upgrading compatible DDR4 platforms that accept 260-pin SODIMMs and can run at 2666MHz, 2400MHz or 2133MHz will find this a direct drop-in. Systems that require ECC or registered memory, or that only support earlier DDR generations, cannot use these modules.

The specification that decides fit

The 260-pin DDR4 SODIMM form factor at 2666MHz CL19 1.2V determines whether the kit installs and runs correctly; verify the platform supports this exact combination before purchase.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $350.99
Pricier than about 88% of the 2,079 comparable items (median $70.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 91% of the 1,886 comparable items (median 16 GB).
CAS latency 19
Lower than about 90% of the 70 comparable items (median 40).
Price per GB $5.48 per GB
Cheaper than about 57% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameOWC
Part number2S6D42R8064P
Total capacity64 GB (2 × 32 GB)
Product type260-Pin DDR4 Non-ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latency19
ECC supportNo
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forLaptops, All-in-One Systems, and NAS Systems

Questions about this item

Will the 260-pin DDR4 SODIMM modules fit my laptop's memory slots?

Yes, each 32 GB module uses the standard 260-pin DDR4 SODIMM form factor that fits laptops, all-in-one PCs, mini desktops, micro servers and NAS systems designed for DDR4 memory.

What is the correct way to install the dual-channel kit, and what step do people often miss?

Power off the device, open the memory compartment, insert both modules at the same angle until the gold contacts are fully seated, then press down firmly until the side clips click — skipping the firm press leaves the modules loose and the system will not boot.

How long will these non-ECC DDR4 modules last before they need replacement?

Non-ECC DDR4 SODIMMs have no moving parts and run at 1.2 V; under normal laptop or NAS workloads they typically remain reliable for the usable life of the host system, so replacement is only needed if a module fails or capacity requirements change.

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