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Green circuit board with black memory chips and gold edge connector

OWC

OWC 8GB DDR4 2666 ECC SODIMM laptop RAM

SKU CH-JNXC-MQNAQ

8 GB DDR4-2666 ECC SODIMM adds error-correcting memory to compatible laptops, all-in-one PCs and NAS units

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forLaptops, All-in-One Systems, and NAS Systems
  • ECC protection prevents data errors in critical workloads
  • 2666 MHz DDR4 speed delivers responsive multitasking performance
  • 2 V operation reduces power draw and heat
  • 260-pin SO-DIMM fits laptops, all-in-ones and NAS units
  • Backward compatible with 2400 MHz and 2133 MHz systems

ECC SODIMM for laptops and NAS

This 8 GB DDR4 module runs at 2666 MT/s with CL19 latency and 1.2 V operation. It uses the 260-pin SO-DIMM form factor and includes on-die ECC for data integrity. The stick is unbuffered and has no heat spreader, keeping it compatible with slim laptop chassis and dense NAS bays.

Suits ECC-capable platforms only

The module targets laptops, all-in-one PCs and NAS units that explicitly support unbuffered ECC memory. Systems without ECC support in the chipset or BIOS will ignore the error-correction function or fail to post. Buyers needing non-ECC memory or higher capacities should look at other modules.

Speed and ECC decide fit

The decisive specification is the DDR4 2666 CL19 ECC unbuffered profile. A system must accept this exact speed, latency and ECC type; otherwise the module will down-clock to 2400 or 2133 MT/s or simply not work. Verify the platform's qualified-vendor list before purchasing.

How it compares

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

Price $55.99
Cheaper than about 56% of the 2,079 comparable items (median $70.99).
Total capacity 8 GB
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $7.00 per GB
Pricier than about 61% of the 1,886 comparable items (median $5.94 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2C6D41R808 GB
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forLaptops, All-in-One Systems, and NAS Systems

Questions about this item

Will this DDR4 2666 ECC SODIMM run at the correct speed in my laptop that currently uses 2400 MHz memory?

Yes, the module is backwards compatible with 2400 MHz and 2133 MHz systems and will automatically operate at the highest speed the platform supports.

How can I verify the ECC function is active after installing this 260-pin SODIMM?

Enter the system BIOS or UEFI and look for the memory configuration screen; it should report ECC as enabled or show the module as an ECC type.

Does the package include only the 8 GB memory module or are tools and cables also supplied?

The box contains the single 8 GB DDR4 2666 CL19 SODIMM; no screwdrivers, cables or additional hardware are included.

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