SanDisk introduced its Extreme microSDHC and microSDXC UHS-I memory cards, delivering 64GB of storage for smartphones, tablets and cameras.
SanDisk says these microSDXC cards are the fastest on the market1, with up to 80MB/sec read and up to 50MB/sec write speeds, allowing faster shot-to-shot performance, rapid data transfer, fast action photography, continuous burst mode and quick file transfers.
“Most high-end smartphones are now driven by high-speed quad-core processors, which deliver Full HD content and applications to large, high-resolution external displays," said Stuart Robinson, director, handset component technologies service, Strategy Analytics. “Such applications require high memory bandwidth which is ideal for the SanDisk Extreme microSDXC card, the world's fastest microSDXC memory solution.”
http://www.sandisk.com/products/memory-cards/microsd/