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OWC

OWC 64GB (4x16GB) DDR4 2666MHz CL19 ECC SODIMM 1.2V Laptop RAM

SKU CH-SA9C-QWF52

Four 16 GB DDR4 2666 MHz CL19 ECC SODIMM modules totalling 64 GB for laptops and NAS systems

  • Capacity64GB (4 x 16GB)
  • Type260-Pin DDR4 SO-DIMM
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 64GB (4 x 16GB)

  • 64GB total capacity from four 16GB modules
  • DDR4 2666MHz CL19 speed for responsive performance
  • ECC unbuffered design protects data integrity
  • 2V low voltage reduces power consumption
  • Backward compatible with 2400MHz and 2133MHz systems

Capacity and purpose

This kit provides 64 GB of DDR4 laptop memory arranged as four 16 GB modules. It targets users upgrading compatible Synology NAS units, micro servers or all-in-one systems that require ECC unbuffered SO-DIMMs. The 260-pin form factor fits standard DDR4 SO-DIMM slots in those platforms.

Build and connectors

Modules use a standard 260-pin DDR4 SO-DIMM edge connector without heat spreaders, keeping the profile low for tight laptop or NAS chassis. JEDEC and RoHS compliance ensures the kit meets OEM specifications for warranty-safe upgrades. The unbuffered ECC design suits systems that support error-correcting memory without registered modules.

Thermals and power

Each module operates at 1.2 V, the standard DDR4 voltage, which limits heat output in enclosed NAS or laptop bays. CL19 latency at 2666 MHz runs within JEDEC timings, so power draw remains modest during typical file-serving or multitasking workloads. No active cooling is required on the modules themselves.

Puntos fuertes

  • 64GB total capacity from four 16GB modules
  • DDR4 2666MHz CL19 speed for responsive performance
  • ECC unbuffered design protects data integrity
  • 2V low voltage reduces power consumption
  • Backward compatible with 2400MHz and 2133MHz systems

Especificaciones

BrandOWC
Part Number2C6D42R8064S
Capacity64GB (4 x 16GB)
Type260-Pin DDR4 SO-DIMM
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
Heat SpreaderNo
Recommend UseLaptops, All-in-One Systems, and NAS Systems

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Preguntas sobre este artículo

Does the DDR4-2666 CL19 ECC SODIMM run at 2666 MHz or drop to 2400 MHz in my system?

The kit is rated at 2666 MHz CL19 and is backward compatible with 2400 MHz and 2133 MHz, so it will run at the highest speed the platform supports.

Will the 260-pin 1.2 V unbuffered ECC modules fit my Synology NAS DIMM slots?

Yes, the 260-pin SO-DIMM form factor matches the slots used in Synology DiskStation, RackStation, FlashStation and DVA NVR models listed for this upgrade.

How do I install the four 16 GB sticks so the NAS recognises all 64 GB?

Power off the unit, open the memory cover, insert each module at an angle until the clips click, then power on and verify 64 GB in the DSM info centre.

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