RAM Crucial SO-DIMM 4GB DDR3L 1600MHz CL11:Faster Computer? No problem with the Crucial Memory!Your laptop can easily stop managing current applications due to lack of RAM. The Crucial 4GB memory module can provide even older machines with second wind. Just make sure your laptop is compatible and has two positions of SO-DIMM format free.Increases the system performance204-pin Crucial memory module operates at a high frequency of 1600MHz. It can use lower power voltage of 1.35V as well as current 1.5V voltage.Attention : Format DDR3 is not compatible with older slots DDR2 or DDR!