CT2K16G4SFD8266 is a 32GB Kit consisting of (2) 16GB 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 2666MT/s SODIMM memory.