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Two green laptop memory sticks, black chips, no heat spreader

Corsair

Corsair Vengeance 32GB (2x16GB) DDR4-2666 CL18 SO-DIMM laptop RAM CMSX32GX4M2A2666C18

SKU CH-FS6Y-EME5B MPN CMSX32GX4M2A2666C18

Two 16 GB DDR4-2666 SO-DIMM modules running at CL18 1.20 V for 32 GB total laptop memory

  • Capacity32GB (2 x 16GB)
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL18
  • Timing18-19-19-39
  • Voltage1.20V

Capacity 32GB (2 x 16GB)

Struck-through versions exist but are not stocked here.

Speed DDR4 2666 (PC4 21300)

CAS Latency CL18

  • 32 GB capacity with two 16 GB modules for multitasking headroom
  • DDR4 2666 speed delivers 21300 MB/s bandwidth
  • CL18 latency with 18-19-19-39 timings for responsive performance
  • 20 V operation reduces power draw and heat
  • 260-pin SO-DIMM form factor fits standard laptop slots

Corsair Vengeance 32GB DDR4 SO-DIMM kit

This Corsair Vengeance kit delivers 32GB of DDR4 laptop memory across two 16GB modules. It is built for notebooks that accept 260-pin SO-DIMMs and run at the DDR4-2666 standard. The modules operate at 1.20V with CL18 timings. Buyers needing DDR3 SODIMMs or desktop DIMMs cannot use this product.

DDR4-2666 speed and CL18 latency limits

The memory runs at 2666 MT/s with a CAS latency of 18 and timings of 18-19-19-39. This speed ceiling is set by the DDR4-2666 specification and the memory controller in the host system. Systems limited to lower DDR4 frequencies will downclock the modules automatically. No manual configuration or XMP profiles are required for operation.

32GB dual-channel capacity decides fit

The kit provides 32GB total capacity in a matched pair of 16GB modules for dual-channel operation. This capacity is the primary factor in determining whether the upgrade meets the workload requirements of the target laptop. Buyers whose systems support only a single SO-DIMM slot or a lower maximum capacity per slot should verify compatibility before purchase.

Highlights

  • 32 GB capacity with two 16 GB modules for multitasking headroom
  • DDR4 2666 speed delivers 21300 MB/s bandwidth
  • CL18 latency with 18-19-19-39 timings for responsive performance
  • 20 V operation reduces power draw and heat
  • 260-pin SO-DIMM form factor fits standard laptop slots

Specifications

BrandCORSAIR
SeriesVengeance
ModelCMSX32GX4M2A2666C18
Capacity32GB (2 x 16GB)
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL18
Timing18-19-19-39
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Heat SpreaderNo
Shipping weight0.04 kg
Package size127 × 75 × 3 mm

Other versions of this model

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Questions about this item

Should I pick this 32 GB kit or a single 16 GB module for my laptop?

This kit provides two matched 16 GB modules giving 32 GB total in dual-channel mode. A single 16 GB stick would run in single-channel and leave half the capacity unused.

What does the DDR4-2666 CL18 rating actually deliver inside a notebook?

The modules run at 2666 MT/s with 18-19-19-39 timings at 1.20 V. The system will set this speed automatically, providing the rated bandwidth without manual setup.

Does the 260-pin SO-DIMM interface limit the usable speed or voltage?

The 260-pin DDR4 SO-DIMM form factor carries the specified 2666 MT/s signal and 1.20 V supply. No higher DDR4 speed or voltage is defined for this connector.

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