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Eight green rectangular SODIMM modules with gold contacts and black chips, no heat spreaders

OWC

OWC 128GB (8x16GB) DDR4 2666MHz CL19 ECC Unbuffered SODIMM 1.2V 260-pin laptop RAM

SKU CH-PPDD-3Q8JS

Eight 16 GB DDR4 2666 MHz ECC unbuffered SODIMMs give laptops and NAS systems 128 GB of error-correcting memory at 1.2 V

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • 128 GB total capacity from eight 16 GB modules for heavy multitasking
  • ECC protection detects and corrects single-bit errors to safeguard data
  • DDR4 2666 MHz CL19 speed delivers responsive performance in compatible systems
  • Low 1.2 V operation reduces power draw and heat in laptops and NAS units
  • Backward compatible with 2400 MHz and 2133 MHz platforms for flexible upgrades

Kit capacity and purpose

This kit supplies 128GB of DDR4 laptop memory across eight 16GB modules. It is intended for laptops, all-in-one systems and NAS devices that accept 260-pin SO-DIMMs and can use ECC unbuffered RAM.

Compatibility checks

Verify that your system supports DDR4 2666MHz SO-DIMMs with ECC and unbuffered operation. The modules run at 1.2V and are backward compatible with 2400MHz and 2133MHz slots. Confirm the motherboard has eight available slots and that the BIOS enables ECC functionality.

Suitable users and limits

This suits administrators upgrading micro-servers, NAS appliances or workstations that require maximum ECC capacity. It is not for buyers who need non-ECC memory, registered modules, desktop DIMMs or speeds above 2666MHz.

How it compares

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

Price $1,013.99
Pricier than about 92% of the 2,079 comparable items (median $70.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 94% of the 1,886 comparable items (median 16 GB).
Price per GB $7.92 per GB
Pricier than about 69% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameOWC
Part number2C6D42R8128K
Total capacity128 GB (8 × 16 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forLaptops, All-in-One Systems, and NAS Systems

Questions about this item

What is included in the box and is anything else required?

The kit contains eight 16GB DDR4 2666MHz CL19 ECC unbuffered SODIMM modules, totalling 128GB. No additional parts are needed for installation.

Which capacity or version should I choose for my system?

This is a single 128GB kit (8x16GB) running at 2666MHz CL19 1.2V with ECC. Choose it only if your laptop, all-in-one or NAS supports DDR4 ECC SODIMMs and has eight slots.

What does the 2666MHz speed mean once installed?

The modules run at 2666MHz (PC4-21300) with CL19 timing at 1.2V. They are backward compatible with 2400MHz and 2133MHz systems, so they will operate at the highest speed your platform allows.

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