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Two green DDR5 SO-DIMM sticks side by side

Crucial

Crucial CT2K64G56C46S5 128GB (2 x 64GB) DDR5 5600 laptop RAM

SKU CH-C0Q2-V3Q5M MPN CT2K64G56C46S5

A 128GB dual-channel DDR5 SO-DIMM kit running at 5600MHz with CL46 latency for faster multitasking and rendering

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Product type262-Pin DDR5 SO-DIMM

Capacity 128GB (2 x 64GB)

Speed DDR5 5600 (PC5 44800)

CAS Latency CL46

  • 128GB total capacity enables heavy multitasking and large datasets
  • DDR5 5600 speed loads and renders data faster
  • CL46 latency keeps response tight under load
  • 10V operation reduces power draw and heat
  • 262-pin SO-DIMM fits DDR5 laptop slots

128GB DDR5 5600 SO-DIMM Kit

This 128GB kit contains two 64GB 262-pin DDR5 SO-DIMM modules rated at 5600MT/s with CL46 latency and 1.10V operation. It is built for laptops that support high-density DDR5 memory and need maximum capacity for heavy multitasking, content creation, or data-intensive workloads. The unbuffered, non-ECC design suits standard consumer notebook platforms.

Suits DDR5 laptops needing 128GB

Buyers with DDR5-capable laptops that accept 64GB modules and can run at 5600MT/s, or downclock to 5200MT/s or 4800MT/s, will get the full 128GB capacity. Not for systems that only support lower maximum module densities, cannot downclock automatically, or require registered or ECC memory. The kit is also unsuitable for desktops or any device using a different form factor.

Two 64GB modules at 5600MT/s

The decisive specification is the 64GB per module density combined with the 5600MT/s speed rating. A laptop must explicitly support 64GB SO-DIMMs to use this kit at its rated capacity; otherwise the system may not boot or may recognise only part of the memory. Verify the manufacturer's qualified vendor list before purchase.

How it compares

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

Price $1,347.99
Pricier than about 93% of the 2,079 comparable items (median $70.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 94% of the 1,886 comparable items (median 16 GB).
Price per GB $10.53 per GB
Pricier than about 82% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameCrucial
Model nameCT2K64G56C46S5
Part numberCT2K64G56C46S5
Total capacity128 GB (2 × 64 GB)
Product type262-Pin DDR5 SO-DIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.1 V
Size & build
Shipping weight0.09 kg
Package size152 × 102 × 5 mm

Other versions of this model

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Questions about this item

What real-world benefit does the 5600 MHz speed give once the kit is installed?

The 5600 MHz DDR5 modules raise memory bandwidth so the laptop can multitask better, load large files faster and render or edit with less waiting.

What does the DDR5 5600 (PC5 44800) interface cap in practice?

The kit runs at 5600 MHz CL46 at 1.10 V and will downclock to 5200 MHz or 4800 MHz if the platform only supports those lower speeds.

Will the 262-pin SO-DIMM modules fit my laptop's memory slots?

Yes, each 64 GB module uses the standard 262-pin DDR5 SO-DIMM form factor used by current laptop memory slots.

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