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Two green circuit boards with gold edge connectors and black memory chips

Crucial

Crucial CT2K16G4SFRA266 32GB (2 x 16GB) DDR4 2666 laptop RAM

SKU CH-Q2Q2-4979T MPN CT2K16G4SFRA266

Dual-channel 32 GB kit of two 16 GB DDR4 2666 SO-DIMMs running at 1.20 V with CL19 timings

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Capacity 32GB (2 x 16GB)

Speed DDR4 2666 (PC4 21300)

CAS Latency CL19

  • 32 GB dual-channel kit for multitasking headroom
  • 2666 MT/s DDR4 SO-DIMM for fast data rates
  • CL19 19-19-19 timing for responsive access
  • 20 V operation cuts power draw by up to 40 %
  • 260-pin unbuffered non-ECC modules fit standard laptop slots

32 GB DDR4 2666 SO-DIMM kit

This kit contains two 16 GB DDR4 2666 modules in the 260-pin SO-DIMM form factor. It runs at 1.20 V with CL19 timings and is sold new. The dual-channel configuration helps lift memory bandwidth for everyday laptop workloads.

Suits DDR4 laptops with two free slots

The modules fit any laptop that accepts 260-pin DDR4 SO-DIMMs and can use a 32 GB dual-channel kit. Buyers who need ECC or registered memory should look elsewhere, as this kit is unbuffered and non-ECC. Systems limited to lower maximum capacities or single-slot upgrades also cannot use this pair.

Dual-channel 2 x 16 GB capacity

The kit delivers 32 GB total across two matched 16 GB sticks, enabling dual-channel operation on compatible platforms. This capacity is the decisive factor for users who need that specific memory amount in a paired configuration.

How it compares

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

Price $112.99
Pricier than about 63% 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 $3.53 per GB
Cheaper than about 86% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameCrucial
Model nameCT2K16G4SFRA266
Total capacity32 GB (2 × 16 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.03 kg
Package size99 × 79 × 5 mm

Other versions of this model

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Questions about this item

Does the kit include both 16 GB modules or do I need to buy a second stick separately?

The kit contains two 16 GB SO‑DIMMs for a total of 32 GB, so nothing else is required for a dual‑channel upgrade.

Should I choose the CL19 2666 MT/s version or look for a lower latency kit?

This dual‑channel kit runs at CL19 19‑19‑19 timings at 2666 MT/s; select it if your laptop supports DDR4 2666 and you want the rated speed out of the box.

Will the 2666 MT/s rating actually run at that speed in my notebook, or will it drop to a lower frequency?

The modules are rated for 2666 MT/s (PC4 21300) at 1.20 V; they will operate at the highest speed your platform’s memory controller allows, up to that rated value.

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