RAM Crucial SO-DIMM 4 GB DDR4 2400MHz CL17 Single Ranked: Expanding the memory capacity of your laptop is a welcome upgrade that will make for an interesting performance boost. Your machine will gain new strength to meet increasingly challenging tasks. Most important is setting up a modern memory module of the SO-DIMM DDR4 type, which is set at 2 400MHz. The more advanced manufacturing technology has been signed to reduce the voltage to 1.2V. The result is lower energy demands and reduced thermal radiation.