As technology continues its rapid advance, notebook PCs have become increasingly popular - and in some cases have even surpassed desktop PCs in computing performance. With the number of laptop owners growing at an unprecedented rate, the need for improved performance has followed. Getting the most of out of a notebook PC involves investing in high quality and high capacity RAM ( Random-access memory ). These modules play a vital role in unleashing the power of your laptop, affecting not only system stability but also execution speed. ADATA Premier Series DDR 333MHz SO-DIMM conforms to the highest industry standards for RAM modules and is the best choice for your notebook upgrade needs in terms of quality and affordability.