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OWC

OWC 64GB (4x16GB) DDR5 4800 CL40 ECC SODIMM laptop RAM

SKU CH-NYCP-42BCT

Four 16 GB DDR5 4800 CL40 ECC SODIMM modules provide 64 GB of error-correcting memory for compatible laptops, all-in-one PCs and NAS systems

  • Total capacity64 GB (4 × 16 GB)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • Recommended forLaptops, All-in-One Systems, and NAS Systems

Capacity 64GB (4 x 16GB)

  • 64GB total capacity from four 16GB modules
  • DDR5 4800MHz CL40 speed for responsive multitasking
  • ECC unbuffered design protects data integrity
  • JEDEC-standard 1.1V voltage ensures broad compatibility
  • 262-pin SODIMM form factor fits laptops and NAS systems

64GB DDR5 ECC SODIMM kit

This OWC kit supplies 64GB of DDR5 memory across four 16GB modules. It targets laptops, all-in-one PCs and NAS units that require ECC unbuffered SO-DIMMs. The modules run at the standard 1.1V and carry a CL40 latency rating.

PC5-38400 speed ceiling

The DDR5 PC5-38400 interface caps transfer rates at 4800MT/s. Bandwidth above this figure is not available on this standard, so workloads needing higher throughput must select a faster memory class. The 262-pin form factor also prevents use in desktop DIMM slots.

ECC unbuffered requirement

The single specification that decides fit is ECC unbuffered operation. Systems without ECC support in the memory controller will not gain error correction and may not post with these modules installed.

How it compares

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

Price $1,785.99
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 $27.91 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 number4C8D51R8064S
Total capacity64 GB (4 × 16 GB)
Product type262-Pin DDR5 SO-DIMM
Memory
CAS latencyCL40
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

Should I pick this 64 GB kit or a smaller capacity?

This kit provides 64 GB total across four 16 GB modules, suited for workloads that need maximum capacity in a DDR5 laptop or NAS.

What does the 4800 MHz rating deliver in my system?

The modules run at 4800 MHz with CL40 latency, giving the standard JEDEC DDR5 data rate for compatible laptops and all-in-one systems.

Does the 262-pin ECC SODIMM interface limit bandwidth?

The 262-pin DDR5 SODIMM form factor carries the PC5-38400 specification, so bandwidth is capped at the 4800 MT/s JEDEC standard.

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