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Green circuit board with gold edge connector and black memory chips

OWC

OWC 16GB DDR4 2666 CL19 ECC SODIMM laptop RAM

SKU CH-4YC1-WQVJW

16 GB DDR4-2666 ECC SODIMM adds error-correcting memory to compatible laptops, all-in-ones and NAS units

  • Capacity16GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 16 GB capacity lets you run more apps simultaneously
  • DDR4 2666 CL19 speed delivers responsive multitasking
  • ECC protection detects and corrects memory errors
  • 2 V operation reduces power draw and heat
  • 260-pin SODIMM fits laptops, all-in-ones and NAS systems

16GB DDR4 2666 ECC SODIMM

This 16GB DDR4 2666 CL19 ECC SODIMM adds error-correcting memory to compatible laptops, all-in-one PCs and NAS units. The 260-pin module runs at 1.2V and follows JEDEC-standard timings for broad platform compatibility. It targets users who need data-integrity protection in compact systems.

Replaces 2133MHz or 2400MHz modules

The module is backward compatible with 2133MHz and 2400MHz DDR4 slots, so it can replace slower sticks without configuration changes. The upgrade is worthwhile when the system supports 2666MHz operation and the workload benefits from ECC error detection. Systems limited to lower speeds or non-ECC memory will not gain the full advantage.

16GB capacity for multitasking and NAS workloads

A single 16GB stick handles multiple applications, larger files and concurrent virtual machines in supported micro-servers or NAS devices. Headroom decreases when the platform maxes out at one SODIMM slot or when the workload demands more than 16GB of addressable memory. Buyers needing higher density or multi-channel bandwidth should verify slot count and maximum supported capacity before purchase.

Highlights

  • 16 GB capacity lets you run more apps simultaneously
  • DDR4 2666 CL19 speed delivers responsive multitasking
  • ECC protection detects and corrects memory errors
  • 2 V operation reduces power draw and heat
  • 260-pin SODIMM fits laptops, all-in-ones and NAS systems

Specifications

BrandOWC
Part Number2C6D42R816GB
Capacity16GB
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

Questions about this item

Will this 260-pin DDR4 SODIMM fit my laptop's memory slot?

The module uses the standard 260-pin DDR4 SO-DIMM form factor, so it fits any laptop or all-in-one slot designed for DDR4 SODIMMs.

What is the correct way to seat the module, and what step do people often miss?

Align the notch with the slot key, insert at a slight angle, then press down firmly until both side clips click — the step most people miss is pressing evenly on both ends until the clips engage fully.

Does the ECC function require any configuration, and will the chips need replacement later?

ECC operates automatically when the platform supports it; no BIOS setup is needed. The memory has no moving parts and no heat spreader, so it does not require scheduled replacement.

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