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Two green rectangular DDR5 laptop memory modules with gold contacts and black label stickers

Crucial

Crucial CT2K32G48C40S5 64GB (2 x 32GB) DDR5 4800 CL40 laptop RAM

SKU CH-HAQY-G75R3 MPN CT2K32G48C40S5

Adds 64 GB of DDR5 4800 CL40 memory in a two-module kit for compatible laptops

  • Capacity64GB (2 x 32GB)
  • Type262-Pin DDR5 SO-DIMM
  • SpeedDDR5 4800 (PC4 38400)
  • CAS LatencyCL40
  • Timing40-39-39
  • Voltage1.10V

Capacity 64GB (2 x 32GB)

Struck-through versions exist but are not stocked here.

Speed DDR5 4800 (PC4 38400)

CAS Latency CL40

  • 64 GB kit (2 x 32 GB) for high-capacity multitasking
  • DDR5 4800 speed delivers blazing bandwidth for demanding workloads
  • CL40 CAS latency with 40-39-39 timings for responsive performance
  • 10 V operation reduces power draw and heat
  • 262-pin SO-DIMM form factor fits DDR5-enabled laptops only

64 GB DDR5 4800 kit for 12th Gen Intel laptops

This 64 GB kit contains two 32 GB DDR5 4800 SO-DIMMs built for laptops that support DDR5 memory. The modules run at 1.10 V with CL40 latency and 40-39-39 timings. They target users upgrading 12th Gen Intel Core laptops for heavier multitasking, content creation or gaming workloads.

Sustained throughput with 4800 MT/s bandwidth

At DDR5 4800 the kit delivers PC5-38400 bandwidth that holds up during long rendering, compilation or virtualisation sessions. The 1.10 V operating voltage keeps thermals manageable inside thin chassis, while unbuffered non-ECC operation avoids the latency penalty of registered modules. CL40 timings remain stable across extended loads.

Replaces DDR4 or smaller DDR5 kits when capacity

The jump is worth it when 32 GB or 48 GB no longer fits active projects, virtual machines or large texture pools. Buyers tied to DDR4 platforms cannot use these modules; the 262-pin DDR5 keying is physically incompatible. Systems limited to lower maximum capacities will not recognise the full 64 GB.

Highlights

  • 64 GB kit (2 x 32 GB) for high-capacity multitasking
  • DDR5 4800 speed delivers blazing bandwidth for demanding workloads
  • CL40 CAS latency with 40-39-39 timings for responsive performance
  • 10 V operation reduces power draw and heat
  • 262-pin SO-DIMM form factor fits DDR5-enabled laptops only

Specifications

BrandCrucial
ModelCT2K32G48C40S5
Part NumberCT2K32G48C40S5
Capacity64GB (2 x 32GB)
Type262-Pin DDR5 SO-DIMM
SpeedDDR5 4800 (PC4 38400)
CAS LatencyCL40
Timing40-39-39
Voltage1.10V
ECCNo
Buffered/RegisteredUnbuffered
FeaturesUnlock the potential of your 12th Gen Intel Core laptop processors
Harness blazing speeds and massive memory bandwidth
Game at higher frame rates, run demanding software, and power through heavy workloads
Compatible only with DDR5-enabled laptop, not DDR4-enabled laptops
ECC type = non-ECC, form factor = SODIMM, pin count = 262-pin, PC speed = PC5-38400, voltage = 1.1V, rank and configuration = 2Rx8
Shipping weight0.01 kg
Package size107 × 89 × 3 mm

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 1.10V DDR5 modules run cooler than DDR4 sticks during all-day workloads?

DDR5 operates at 1.10V, which is lower than DDR4 voltage, so the modules draw less power and generate less heat under sustained load.

Does my laptop need a DDR5-capable motherboard and 262-pin SO-DIMM slots to use this kit?

Yes, this kit is compatible only with DDR5-enabled laptops that have 262-pin SO-DIMM slots; it will not fit or work in DDR4 systems.

Can I mix these 4800 CL40 modules with slower DDR5 sticks already in my laptop?

Mixing speeds or timings forces all modules to run at the lowest common speed and loosest timings, so performance will drop to match the slower sticks.

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