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Green circuit board with black memory chips and gold edge connector

OWC

OWC 8GB DDR4 2666MHz ECC SODIMM laptop RAM

SKU CH-XXDY-X2C70

ECC DDR4 SODIMM adds 8 GB at 2666 MHz with CL19 latency for laptops, NAS and micro-servers

  • Capacity8GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 8GB

Struck-through versions exist but are not stocked here.

  • ECC protection guards data integrity in critical workloads
  • 2666MHz DDR4 speed lifts multitasking responsiveness
  • 2V operation reduces power draw and heat
  • 260-pin SO-DIMM fits laptops, all-in-ones and NAS units
  • Backward compatible with 2400MHz and 2133MHz systems

What this module is and who it is for

This is an 8GB DDR4 2666MHz ECC SODIMM built for laptops, all-in-one PCs and NAS units that support error-correcting memory. It runs at 1.2V with CL19 latency and uses a 260-pin unbuffered layout. The single-rank design fits standard SO-DIMM slots in compatible systems.

What to check on your existing setup before ordering

Verify that your device accepts DDR4 ECC SO-DIMMs and can operate at 2666MHz or lower speeds such as 2400MHz and 2133MHz. Confirm the motherboard or controller supports unbuffered ECC rather than registered modules. Ensure a free 260-pin slot is available and that the BIOS or firmware enables ECC functionality.

Who this suits and who should look elsewhere

Builders upgrading a compatible laptop, all-in-one or NAS who need data-integrity protection will benefit from the ECC feature. Systems limited to non-ECC memory or those requiring registered DIMMs cannot use this module. Buyers who need higher capacity per slot or faster speeds than 2666MHz should consider other options.

Highlights

  • ECC protection guards data integrity in critical workloads
  • 2666MHz DDR4 speed lifts multitasking responsiveness
  • 2V operation reduces power draw and heat
  • 260-pin SO-DIMM fits laptops, all-in-ones and NAS units
  • Backward compatible with 2400MHz and 2133MHz systems

Specifications

BrandOWC
Part Number2C6D41R808GB
Capacity8GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Heat SpreaderNo
Recommend UseLaptops, All-in-One Systems, and NAS Systems

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the module arrive as a single 8GB stick or do I need to buy anything else?

The package contains one 8GB DDR4 2666MHz CL19 ECC SODIMM. No additional parts are required for installation.

Should I choose this 2666MHz CL19 ECC module or a faster non-ECC kit?

Pick this module when your laptop, all-in-one or NAS specifically requires ECC memory; otherwise a non-ECC kit will not provide error correction.

What does the 2666MHz rating mean once the SODIMM is installed in my laptop?

The module will run at 2666MHz if the system supports it, otherwise it drops to 2400MHz or 2133MHz automatically.

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