4G DDR3/3L 1600 RAM for FX50j A550J VM510 ZX50j W519L

4G DDR3/3L 1600 memory module compatible with FX50j, A550J, VM510, ZX50j and W519L laptops. Use this 4G DDR3/3L 1600 stick as a direct replacement or upgrade to restore system memory. Simple to install and matched to the listed models' original specification.