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OWC

OWC 64GB (8x8GB) DDR4 2666MHz CL19 ECC SO-DIMM 1.2V 260-pin laptop RAM

SKU CH-J2V9-8K7MV

Eight 8 GB DDR4 2666 MHz ECC SO-DIMMs totalling 64 GB for laptops, NAS and micro servers at 1.2 V

  • Total capacity64 GB (8 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 64GB (8 x 8GB)

  • 64 GB total capacity for heavy multitasking and large datasets
  • ECC protection detects and corrects single-bit errors for data integrity
  • 2666 MHz DDR4 speed with CL19 latency for responsive performance
  • 2 V low-voltage operation reduces power draw and heat
  • Backward compatible with 2400 MHz and 2133 MHz systems

64GB DDR4 2666 ECC SO-DIMM kit

This kit supplies 64GB of DDR4 memory across eight 8GB modules running at 2666MHz with CL19 latency. Each stick is an unbuffered 260-pin SO-DIMM operating at 1.2V and includes on-die error correction. The modules comply with JEDEC PC4-21300 specifications and carry OWC lifetime warranty coverage.

Laptops, NAS and micro-servers needing ECC

Builders upgrading a laptop, all-in-one, NAS or point-of-sale system that requires error-correcting code memory will find this kit a direct fit. Systems that only accept non-ECC SO-DIMMs or that are limited to lower maximum capacities cannot use these modules.

8x8GB ECC at 2666MHz with CL19

The decisive specification is the eight-module 8GB ECC configuration at 2666MHz CL19. If the target platform cannot populate eight slots or does not support ECC operation, this kit will not function as intended.

How it compares

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

Price $489.99
Pricier than about 90% of the 2,079 comparable items (median $70.99).
Total capacity 64 GB (8 × 8 GB)
Higher than about 91% of the 1,886 comparable items (median 16 GB).
Price per GB $7.66 per GB
Pricier than about 67% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameOWC
Part number2C6D41R8064K
Total capacity64 GB (8 × 8 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forLaptops, All-in-One Systems, and NAS Systems

Other versions of this model

5 more in the same range

Questions about this item

Should I pick the 64GB kit or a smaller capacity for my laptop?

The kit provides 64GB total across eight 8GB modules. Choose it if your laptop has eight SO-DIMM slots and the workload needs that much memory; otherwise a smaller kit avoids unused slots.

What does the 2666MHz speed mean once the modules are installed?

The modules run at DDR4 2666 (PC4-21300) with CL19 latency at 1.2V. If the system only supports 2400MHz or 2133MHz, they will downclock automatically to match.

Is the 260-pin SO-DIMM interface compatible with standard laptop slots?

Yes, the 260-pin DDR4 SO-DIMM form factor fits standard laptop, all-in-one and NAS memory slots that accept unbuffered ECC modules.

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