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OWC

OWC 64GB (2x32GB) DDR4 2666MHz CL19 SODIMM 1.2V 260-pin laptop RAM

SKU CH-RHNS-BHS5G

Dual-channel 64 GB kit of DDR4 2666 MHz CL19 SODIMM modules for laptops, all-in-ones and NAS systems

  • Total capacity64 GB (2 × 32 GB)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • Recommended forLaptops, All-in-One Systems, and NAS Systems

Capacity 64GB (2 x 32GB)

  • 64GB dual-channel kit expands multitasking headroom for demanding workloads
  • 2666MHz DDR4 speed accelerates data throughput on compatible laptops and NAS systems
  • CL19 latency at 1.2V balances responsive performance with low power draw
  • 260-pin SO-DIMM form factor fits standard laptop and all-in-one memory slots
  • Backward compatible with 2400MHz and 2133MHz systems for flexible upgrades

64GB DDR4 2666MHz laptop upgrade kit

This 64GB kit contains two 32GB DDR4 2666MHz CL19 SODIMM modules built for laptops, all-in-one PCs and NAS systems. The 260-pin unbuffered non-ECC design runs at 1.2V and conforms to JEDEC PC4-21300 specifications. It is intended for users who need the maximum supported capacity in a dual-channel configuration.

Replaces lower-capacity or slower DDR4 SODIMMs

The kit upgrades systems currently running 2133MHz or 2400MHz DDR4 by adding both higher frequency and larger density in a matched pair. The jump is worth it when the platform supports 2666MHz operation and the workload benefits from 64GB of addressable memory such as virtualisation, large datasets or heavy multitasking.

Verify 260-pin DDR4 slot count and maximum capacity

Check that the device accepts 260-pin DDR4 SO-DIMMs and can address 32GB per slot before ordering. Confirm the BIOS or firmware allows 2666MHz speed; otherwise the modules will down-clock to 2400MHz or 2133MHz. Ensure the system does not require ECC or registered memory, as this kit is non-ECC and unbuffered.

How it compares

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

Price $405.99
Pricier than about 90% of the 2,079 comparable items (median $70.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 91% of the 1,886 comparable items (median 16 GB).
Price per GB $6.34 per GB
Pricier than about 54% 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 number2S6D42R8064P
Total capacity64 GB (2 × 32 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

Does this kit use the 260-pin SODIMM form factor required by my laptop?

Yes, both 32 GB modules are 260-pin DDR4 SO-DIMMs, the standard slot for laptops, all-in-ones and compatible NAS units.

What is the common installation mistake with this dual-channel kit?

Installing only one module or placing them in non-matching slots breaks dual-channel mode; use both sticks in the paired sockets for full 64 GB bandwidth.

Will the CL19 timing require any future adjustment or replacement?

No, the modules run at fixed JEDEC 2666 MHz CL19 1.2 V with no heat spreader; they need no tuning and have no wear-out parts to replace.

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