We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four green DDR5 laptop memory modules with black chips

OWC

OWC 128GB (4x32GB) DDR5 4800 CL40 laptop RAM

SKU CH-7Y2Z-GBCTM

Adds 128GB of DDR5 4800 CL40 memory in four 32GB SODIMM modules for laptops and all-in-one systems

  • Capacity128GB (4 x 32GB)
  • Type262-Pin DDR5 SO-DIMM
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCNo
  • Buffered/RegisteredUnbuffered

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity from four 32 GB modules for heavy multitasking
  • DDR5 4800 MT/s CL40 timing delivers fast data throughput
  • 1 V low voltage reduces power draw in laptops
  • 262-pin SO-DIMM form factor fits compatible notebook and all-in-one slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

128GB DDR5 laptop kit

This 128GB kit delivers four 32GB DDR5 SO-DIMM modules rated at 4800MHz CL40 for laptops, all-in-one PCs and compatible NAS units. The 262-pin unbuffered design runs at 1.1V without ECC, targeting users who need maximum memory capacity for heavy multitasking and large datasets.

262-pin SO-DIMM form factor

Installation requires four free DDR5 SO-DIMM slots and a platform that supports 128GB total capacity at 4800MHz. The dual-rank 2Rx8 organisation works with standard laptop voltage rails, freeing the builder from hunting for specialised high-voltage or registered modules.

JEDEC-standard 4800MHz operation

Sustained workloads run at the rated 4800MHz CL40 timings within the 1.1V JEDEC envelope, avoiding the thermal throttling that can appear with overclocked profiles. The non-ECC unbuffered design keeps latency predictable during long render, compile or virtualisation sessions.

Highlights

  • 128 GB total capacity from four 32 GB modules for heavy multitasking
  • DDR5 4800 MT/s CL40 timing delivers fast data throughput
  • 1 V low voltage reduces power draw in laptops
  • 262-pin SO-DIMM form factor fits compatible notebook and all-in-one slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

Specifications

BrandOWC
Part Number4S8D52R8128S
Capacity128GB (4 x 32GB)
Type262-Pin DDR5 SO-DIMM
CAS LatencyCL40
Voltage1.1V
ECCNo
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
Heat SpreaderNo
Recommend UseLaptops, All-in-One Systems, and NAS Systems

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the CL40 latency become a bottleneck during long rendering sessions?

CL40 is the rated CAS latency at 4800 MHz; it is the primary timing limit you will see under sustained workloads.

How much heat and power do four 32 GB modules draw when running all day?

Each module operates at 1.1 V with no heat spreader, so total power stays low and thermals are managed by the laptop chassis.

What must my laptop already support for this 128 GB kit to work?

The system needs four 262-pin DDR5 SO-DIMM slots and a memory controller that accepts 128 GB of non-ECC unbuffered memory.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.