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Eight green DDR4 SODIMM sticks in a row

OWC

OWC 64GB DDR4 2666MHz CL19 8x8GB SODIMM 1.2V laptop RAM

SKU CH-SMJB-2SH2B

Eight 8 GB DDR4 SODIMMs totalling 64 GB at 2666 MHz CL19, 1.2 V, non-ECC, for laptops and NAS

  • Total capacity64 GB (8 × 8 GB)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • Recommended forLaptops, All-in-One Systems, and NAS Systems

Capacity 64GB (8 x 8GB)

  • 64GB total capacity for demanding multitasking with eight 8GB modules
  • DDR4 2666MHz CL19 speed for responsive system performance
  • 2V low-voltage operation reduces power draw and heat
  • 260-pin SO-DIMM form factor fits laptops, all-in-ones and NAS units
  • Backward compatible with 2400MHz and 2133MHz systems for flexible upgrades

64GB DDR4 SODIMM kit for laptops and NAS

This kit supplies 64GB of DDR4 memory across eight 8GB modules running at 2666MHz with CL19 latency. It targets owners of compatible laptops, all-in-one PCs, mini desktops, micro servers and NAS appliances who need the maximum supported capacity for heavy multitasking or virtualisation workloads.

Fits 260-pin DDR4 slots without a heat spreader

Each module uses the standard 260-pin SO-DIMM form factor and operates at the JEDEC 1.2V level, so it draws no more power than the factory memory it replaces. The low-profile design clears tight chassis spaces and leaves room for factory cooling solutions in compact systems.

Runs at 1.2V with backward speed compatibility

The modules are rated for 2666MHz at 1.2V and will automatically clock down to 2400MHz or 2133MHz when installed in platforms that only support those lower speeds. This JEDEC-compliant behaviour keeps thermals and power draw consistent with the original system specification.

How it compares

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

Price $333.99
Pricier than about 87% of the 2,079 comparable items (median $70.99).
Total capacity 64 GB (8 × 8 GB)
Higher than about 91% of the 1,886 comparable items (median 16 GB).
Price per GB $5.22 per GB
Cheaper than about 61% of the 1,886 comparable items (median $5.94 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2S6D41R8064K
Total capacity64 GB (8 × 8 GB)
Product type260-Pin DDR4 SO-DIMM
Memory
CAS latencyCL19
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

Other versions of this model

5 more in the same range

Questions about this item

What is the CAS latency of these DDR4 2666MHz modules under sustained workloads?

The modules run at CL19, which is the rated latency for the 2666MHz speed grade.

How much power does the 1.2V kit draw when the system runs all day?

Each 8GB module operates at the standard DDR4 voltage of 1.2V, keeping power draw low for continuous laptop or NAS use.

Does my laptop need 260-pin SO-DIMM slots to install this 8x8GB kit?

Yes, the kit uses the 260-pin DDR4 SO-DIMM form factor required by compatible laptops, all-in-ones and NAS units.

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