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Two green circuit boards with gold contacts and black memory chips

OWC

OWC 64GB (2x32GB) DDR4 2933MHz CL21 ECC SODIMM 1.2V laptop RAM

SKU CH-XQ3Y-8RX1J

A 64GB dual-channel DDR4 2933MHz ECC SODIMM kit with CL21 timing and 1.2V operation for compatible laptops, all-in-ones and NAS systems

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 64GB (2 x 32GB)

  • ECC protection guards data integrity in critical workloads
  • 64GB dual-channel kit expands multitasking headroom for demanding apps
  • 2933MHz CL21 speed delivers responsive throughput at 1.2V
  • 260-pin SODIMM fits laptops, all-in-ones and NAS units
  • Backward compatible with 2666, 2400 and 2133MHz systems

ECC SO-DIMM kit for laptops and NAS

This 64 GB kit contains two 32 GB DDR4 2933 MHz CL21 modules built to JEDEC PC4-23400 specifications. They operate at 1.2 V and include on-die error-correcting code for data integrity in compatible laptops, all-in-one PCs and NAS appliances.

Suited for ECC-capable mobile and compact systems

The unbuffered 260-pin design works in platforms that support DDR4 ECC SO-DIMMs, such as micro-servers and point-of-sale units. Systems without ECC support in the memory controller will not benefit from the error-correction feature and should use non-ECC memory instead.

2933 MHz CL21 DDR4 ECC at 1.2 V

The decisive specification is the 2933 MHz CL21 ECC profile at 1.2 V; the kit will down-clock to 2666 MHz, 2400 MHz or 2133 MHz where required, but the platform must accept DDR4 ECC SO-DIMMs for the modules to function.

How it compares

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

Price $488.99
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 $7.64 per GB
Pricier than about 67% 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 number2C9D42R8064P
Total capacity64 GB (2 × 32 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
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 SO-DIMM form factor for laptop slots?

Yes, both 32GB modules are 260-pin DDR4 SO-DIMMs that fit standard laptop memory sockets.

What is the correct orientation step when inserting these ECC modules?

Align the notch on the module with the key in the slot, press down firmly until the side clips click, and verify both sticks are fully seated for dual-channel operation.

Will the ECC function remain active if the system later runs at 2666MHz or 2400MHz?

Yes, the modules are backwards compatible with 2666MHz, 2400MHz and 2133MHz while retaining ECC capability at those lower speeds.

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