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OWC

OWC 64GB (4x16GB) DDR5 5200 CL42 1.1V ECC SODIMM laptop RAM

SKU CH-KC2F-X09QY

A 64 GB kit of four 16 GB DDR5 5200 CL42 ECC SODIMM modules at 1.1 V for laptops, all-in-ones and NAS systems

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 5200 (PC5 41600)
  • CAS latencyCL42
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 64GB (4 x 16GB)

  • 64 GB total capacity from four 16 GB modules
  • DDR5 5200 speed with CL42 latency for responsive multitasking
  • ECC unbuffered design protects data integrity in critical workloads
  • 1 V operation reduces power draw and heat output
  • 262-pin SODIMM form factor fits compatible laptops and all-in-one systems

64 GB DDR5 5200 ECC SODIMM kit

This OWC kit delivers 64 GB of DDR5 memory across four 16 GB modules. It is built for laptops, all-in-one PCs and NAS appliances that accept 262-pin SO-DIMMs and can use ECC unbuffered memory. The package targets professionals who need data-integrity protection in compact systems.

DDR5 5200 CL42 at 1.1 V

The decisive specification is the JEDEC-standard DDR5 5200 speed with CL42 latency at 1.1 V. Systems that require this exact speed grade and voltage will recognise the modules automatically; platforms limited to lower DDR5 speeds or non-ECC memory will not be compatible.

Steady throughput with ECC overhead

Under sustained workloads the ECC circuitry continuously corrects single-bit errors without halting the controller. The unbuffered design keeps latency low while the 1.1 V operation limits thermal output during long compile, virtualization or file-serving sessions.

How it compares

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

Price $1,656.99
Pricier than about 95% of the 2,079 comparable items (median $70.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 91% of the 1,886 comparable items (median 16 GB).
Price per GB $25.89 per GB
Pricier than about 90% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameOWC
Part number5C2D51R8064S
Total capacity64 GB (4 × 16 GB)
Product type262-Pin DDR5 SO-DIMM
Performance
Rated speedDDR5 5200 (PC5 41600)
Memory
CAS latencyCL42
ECC supportYes
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forLaptops, All-in-One Systems, and NAS Systems

Other versions of this model

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Questions about this item

What does the 5200 MHz rating mean once the kit is installed in a laptop?

The 5200 MHz rating is the JEDEC-standard data rate the modules run at by default, delivering PC5-41600 bandwidth without manual overclocking.

How does the DDR5 interface and CL42 latency affect real-world throughput?

DDR5 at CL42 provides the standard 5200 MT/s transfer rate; the CAS latency of 42 cycles is the JEDEC baseline for this speed grade.

Will the 262-pin SODIMM modules fit my laptop's memory slots?

Yes — each 16 GB module uses the standard 262-pin DDR5 SODIMM form factor and 1.1 V operation required by compatible laptops and all-in-one systems.

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