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Two green DDR5 laptop memory modules with gold contacts

OWC

OWC 32GB (2x16GB) DDR5 4800 CL40 262-pin 1.1V Non-ECC SODIMM laptop RAM

SKU CH-TKMN-ZYW5C

Dual-channel 32 GB DDR5 SODIMM kit at 4800 MT/s CL40 1.1 V for laptops, all-in-ones and NAS

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit
  • Dual-channel 32 GB kit speeds up multitasking
  • DDR5 4800 CL40 delivers high bandwidth for demanding apps
  • 1 V operation reduces power draw and heat
  • 262-pin SODIMM fits laptops, all-in-ones and NAS
  • JEDEC and RoHS compliant for warranty-safe upgrades

DDR5 4800 SO-DIMM kit for laptops and NAS

This OWC kit supplies 32 GB of DDR5 memory as two 16 GB modules running at 4800 MT/s with CL40 latency. The 262-pin SO-DIMM form factor and 1.1 V operation match the JEDEC standard for mainstream mobile platforms. It is built for owners of compatible laptops, all-in-one PCs or NAS appliances who want a straightforward capacity increase.

Suits standard DDR5 SO-DIMM slots.

The modules are unbuffered non-ECC parts, so they work in consumer laptops and similar systems that accept ordinary DDR5 SO-DIMMs. Buyers whose hardware requires error-correcting code memory or registered modules must choose a different product. The dual-channel packaging also means both slots are filled, leaving no room for further expansion on two-slot boards.

CL40 latency at 4800 MT/s sets the performance

The CAS latency of CL40 at the rated 4800 MT/s speed determines how quickly the memory responds to requests. Systems that support higher DDR5 data rates will still run this kit at 4800 MT/s unless the firmware allows a faster JEDEC profile. Confirm that your device lists DDR5 4800 CL40 SO-DIMMs in its qualified-vendor list before purchasing.

How it compares

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

Price $446.99
Pricier than about 90% of the 2,079 comparable items (median $70.99).
Total capacity 32 GB (2 × 16 GB)
Higher than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $13.97 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 number4S8D51R8032P
Total capacity32 GB (2 × 16 GB)
Product type262-Pin DDR5 SO-DIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forLaptops, All-in-One Systems, and NAS Systems

Questions about this item

How do I install the 262-pin DDR5 SODIMM modules and which step do people often miss?

Align the notch on each 16 GB module with the slot key, press firmly until the side clips snap shut, then verify in BIOS that both sticks show 4800 MT/s and dual-channel mode.

What maintenance or replacement will this 32 GB kit need over time?

No routine maintenance is required; the modules are solid-state and rated for the system lifetime, so replacement only occurs if a stick fails or capacity needs change.

What limit appears first under sustained heavy workloads with this CL40 1.1 V memory?

The CAS-40 latency at 4800 MT/s is the primary bottleneck before bandwidth or thermal constraints become noticeable.

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