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Eight green circuit boards with black memory chips and gold edge connectors

OWC

OWC 128GB (8x16GB) DDR4 3200MHz CL22 SODIMM laptop RAM

SKU CH-AW27-69192

Eight 16 GB DDR4 3200 MHz CL22 SODIMM modules totalling 128 GB for laptops, all-in-one PCs and NAS units

  • Total capacity128 GB (8 × 16 GB)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • Recommended forLaptops, All-in-One Systems, and NAS Systems
  • 128 GB total capacity from eight 16 GB modules
  • 3200 MHz DDR4 speed rated at PC4-25600
  • CL22 latency with 1.2 V low-voltage operation
  • 260-pin SO-DIMM form factor fits laptops and NAS units
  • JEDEC and RoHS compliant for warranty-safe upgrades

128GB DDR4 SODIMM kit

This OWC kit supplies 128GB of DDR4 memory across eight 16GB modules rated at 3200MHz with CL22 latency. It targets laptops, all-in-one PCs and NAS units that accept 260-pin SO-DIMMs and need a large capacity upgrade.

Sustained workload behaviour

The modules run at the standard 1.2V JEDEC voltage without heat spreaders, so they rely on the host chassis airflow during long compile, virtualisation or rendering sessions. JEDEC compliance means timings and voltage remain stable rather than throttling under continuous load.

Thermals, noise and power

Operating at 1.2V keeps power draw low and eliminates the need for active cooling on the modules themselves. With no onboard fans or spreaders the kit adds no audible noise, leaving thermal management entirely to the system's existing cooling design.

How it compares

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

Price $624.99
Pricier than about 91% 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 $4.88 per GB
Cheaper than about 67% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameOWC
Part number3S2D41R8128K
Total capacity128 GB (8 × 16 GB)
Product type260-Pin DDR4 SO-DIMM
Memory
CAS latencyCL22
ECC supportNo
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

Does the 1.2V operating voltage of these 3200MHz CL22 modules keep heat and power draw low during all-day workloads?

Yes, the kit runs at the standard 1.2V DDR4 voltage, which is designed for efficient power use and minimal heat output in continuous operation.

Must my laptop or NAS have eight free 260-pin SO-DIMM slots to use the full 128GB kit?

The package contains eight 16GB modules, so you need eight available 260-pin slots; fewer slots mean you can only install a matching subset.

Will the JEDEC-standard PC4-25600 timing let these sticks run alongside my existing DDR4 memory without manual BIOS changes?

The modules follow JEDEC PC4-25600 specifications, so they should operate at the highest common speed supported by the platform when mixed with other DDR4 memory.

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