Timetec Hynix IC 4GB DDR3L 1600MHz PC3L-12800 Unbuffered Non-ECC 1.35V CL11 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook Computer Memory Ram Upgrade (Dual Rank 4GB) DDR3L, 1600MHz, PC3L 12800, 204 Pin, Unbuffered, Non ECC, 1.35V, CL11, Dual Rank, 2Rx8 based, 256x8 JEDEC standard 1.35V (1.28V ~ 1.45V) and 1.5V (1.425V ~ 1.575V) Power Supply This is a dual voltage piece and can operate at 1.35V or 1.5V Module Size: 4GB Package: 1x4GB For Laptop/Notebook, Not for Desktop For Selected Acer , Alienware , AOpen , ASRock , ASUS/ASmobile , BCM , Biostar , Clevo , Dell , DFI , EliteGroup (ECS) , Foxconn , Fujitsu , Gateway , Getac , Gigabyte , HP/Compaq , Intel , Lenovo , LG Electronics , MEDION , MSI , NEC , Packard Bell , Panasonic , Portwell , QNAP , Samsung , Shuttle , Sony , Supermicro , Synology , Toshiba , Twinhead , ZOTAC