CT8G4SFS824A is a 8GB single ranked DDR4 notebook module that operates at speeds up to 2400 MT/s and has a CL17 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 2400MT/s SODIMM memory. Align the notch(es) on the module with the notch(es) in the slot, and then press the module down until the clips on the slot snap into place place.The catalog shows generic pictures; the delivered articles may differ slightly from the catalog picture.