SAN FRANCISCO (Reuters) - Memory chipmaker SanDisk posted fourth-quarter revenue above expectations as the adoption of solid-state drives helped drive demand for its chips.

SanDisk, whose flash memory chips are used in smartphones, cameras and other mobile devices, said on Wednesday its fourth-quarter revenue was $1.73 billion (1.04 billion pounds), up 12 percent from the year-ago period. Analysts on average had expected fourth-quarter revenue of $1.703 billion, according to Thomson Reuters I/B/E/S.

(Reporting by Noel Randewich; Editing by Richard Chang)