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Eight green circuit boards with black chips, no heat spreaders, 260-pin SODIMM form factor

OWC

OWC 256GB (8x32GB) DDR4 2666MHz CL19 ECC laptop RAM

SKU CH-TV6J-VBY40

Eight 32 GB DDR4 2666 MHz CL19 ECC SO-DIMMs totalling 256 GB for laptops, all-in-ones and NAS at 1.2 V

  • Capacity256GB (8 x 32GB)
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • Massive 256 GB capacity from eight 32 GB modules
  • ECC protection guards data integrity in servers and NAS
  • JEDEC-standard DDR4 2666 MHz CL19 for broad compatibility
  • Low 1.2 V operation reduces heat and power draw
  • Backward compatible with 2400 MHz and 2133 MHz systems

OWC 256GB DDR4 ECC SODIMM Kit

This OWC kit supplies 256GB of DDR4 ECC memory across eight 32GB modules. It runs at 2666MHz with CL19 latency and 1.2V operation. The 260-pin SO-DIMM form factor targets laptops, all-in-one PCs and NAS appliances. Unbuffered ECC adds data integrity for workloads that cannot tolerate silent corruption.

Suits ECC-capable mobile workstations

Builders needing non-ECC memory, lower capacities or speeds above 2666MHz should consider other options. Systems that only accept 2400MHz or 2133MHz modules will still run this kit at the lower frequency. Buyers whose platforms lack ECC support in the BIOS cannot use the error-correction feature.

2666MHz CL19 ECC at 1.2V decides fit

The combination of speed, latency, voltage and ECC function determines whether a given laptop, all-in-one or NAS board will initialise the memory correctly. Verify that the platform specifies DDR4 2666 ECC SO-DIMM support before purchase.

Points forts

  • Massive 256 GB capacity from eight 32 GB modules
  • ECC protection guards data integrity in servers and NAS
  • JEDEC-standard DDR4 2666 MHz CL19 for broad compatibility
  • Low 1.2 V operation reduces heat and power draw
  • Backward compatible with 2400 MHz and 2133 MHz systems

Caractéristiques

BrandOWC
Part Number2C6D42R8256K
Capacity256GB (8 x 32GB)
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
Heat SpreaderNo
Recommend UseLaptops, All-in-One Systems, and NAS Systems

Questions sur cet article

How can I verify the 256 GB kit is running at 2666 MHz CL19 after installation?

Check the memory speed and latency in your system BIOS or a utility such as CPU-Z; each module should report 2666 MHz and CL19 timings at 1.2 V.

What does the 8 x 32 GB package contain and is anything else required?

The box includes eight 32 GB DDR4 2666 MHz ECC SO-DIMM modules; no additional parts are needed for installation.

Should I select the 256 GB kit or a smaller capacity for my laptop?

Choose the 256 GB kit only if your laptop or NAS supports that total capacity and has eight SO-DIMM slots; otherwise pick a lower-capacity kit that matches your slot count and maximum supported memory.

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