ASUS/ASmobile X Series Notebook Memory Upgrade Configurator - choose your Model:

X51L
X51R
X55 Series X55Sr
X55 Series X55Sv
X58 Series X58C
X58 Series X58L
X58 Series X58Le
X59 Series X59Sr
X61 Series X61SL
X71 Series X71A
X71 Series X71A
X71 Series X71Q
X71 Series X71SL
X71 Series X71TL
X71 Series X71Tp
X71 Series X71Vn
X80 Series X80Le
X80 Series X80N
X80 Series X80Z