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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

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC4 38400)
  • CAS latencyCL40
  • Memory timings40-39-39
  • Rated voltage1.1 V
  • Buffer typeUnbuffered

Capacity 64GB (2 x 32GB)

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.

How it compares

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

Price $576.99
Pricier than about 91% 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 $9.02 per GB
Pricier than about 75% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameCrucial
Model nameCT2K32G48C40S5
Part numberCT2K32G48C40S5
Total capacity64 GB (2 × 32 GB)
Product type262-Pin DDR5 SO-DIMM
Performance
Rated speedDDR5 4800 (PC4 38400)
Memory
CAS latencyCL40
Memory timings40-39-39
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.1 V
Size & build
Shipping weight0.01 kg
Package size107 × 89 × 3 mm

Other versions of this model

5 more in the same range

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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