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Two green rectangular SO-DIMM modules with black chips and gold contacts

Crucial

Crucial CT2K8G4SFS8266 16GB (2x8GB) DDR4 2666 CL19 laptop RAM

SKU CH-Q51B-FAJJG MPN CT2K8G4SFS8266

A 16 GB DDR4 laptop memory kit with two 8 GB modules running at 2666 MT/s and CL19 latency

  • Capacity16GB (2 x 8GB)
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.20V

Capacity 16GB (2 x 8GB)

Les versions barrées existent, mais ne sont pas disponibles ici.

  • 16 GB dual-channel kit for smoother multitasking
  • DDR4 2666 MT/s speed for responsive performance
  • CL19 latency with 19-19-19 timings
  • 20 V low-voltage operation reduces power draw
  • 260-pin SO-DIMM form factor fits standard laptop slots

What this kit adds

This 16 GB kit contains two 8 GB DDR4 SO-DIMM modules that run at 2666 MT/s with CL19 timings. It is built for laptops that accept 260-pin unbuffered non-ECC memory at 1.2 V.

Installation notes

The modules slot into standard 260-pin SO-DIMM sockets and require no configuration beyond seating them firmly until the side clips click. The most common issue is a single module not fully engaged, which leaves the system seeing only half the expected capacity.

DDR4 SO-DIMM limits

DDR4 SO-DIMM bandwidth tops out at the rated transfer rate, so workloads that scale with memory throughput will not exceed the 2666 MT/s ceiling. The 1.2 V operating voltage is fixed by the DDR4 standard and cannot be lowered for power saving or raised for overclocking on typical laptop platforms.

Points forts

  • 16 GB dual-channel kit for smoother multitasking
  • DDR4 2666 MT/s speed for responsive performance
  • CL19 latency with 19-19-19 timings
  • 20 V low-voltage operation reduces power draw
  • 260-pin SO-DIMM form factor fits standard laptop slots

Caractéristiques

BrandCrucial
ModelCT2K8G4SFS8266
Capacity16GB (2 x 8GB)
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
FeaturesCT2K8G4SFS8266 is a 16GB Kit consisting of (2) 8GB Single Ranked DDR4 Notebook modules that operates at speeds up to 2666 MT/s and has a CL19 latency. It is an Unbuffered SODIMM. It conforms to the industry standard DDR4 SODIMM layout of 260 pins and is compatible with systems that take DDR4 2666 MT/s SODIMM memory.
Poids d’expédition0.07 kg
Dimensions du colis174 × 117 × 11 mm

Autres versions de ce modèle

5 de plus dans cette gamme

Même famille, mémoire, ventirad ou fréquence différents — comparez avant de vous décider.

Questions sur cet article

How can I confirm the kit is running at 2666 MT/s with CL19 latency after installation?

Open Task Manager or a tool such as CPU-Z; the memory tab should show 2666 MHz speed and 19-19-19 timings for each 8 GB module.

What comes in the CT2K8G4SFS8266 box and is anything else required?

The box contains two 8 GB 260-pin DDR4 SO-DIMM sticks; no extra cables, brackets or software are needed for a standard laptop slot.

Should I choose the 16 GB (2×8 GB) kit or a different capacity for my upgrade?

This 16 GB kit provides two matched 8 GB modules for dual-channel operation; select it when your laptop has two free SO-DIMM slots and supports DDR4 2666.

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