Lexar has introduced its new Lexar High-Performance microSDHC UHS-I and microSDXC UHS-I memory cards. The UHS-I cards carry a Class 10 speed classification, and deliver read transfer speeds up to 300x (45MB per second). The 32GB High-Performance microSDHC UHS-I and 64GB High-Performance microSDXC UHS-I memory cards come with a limited lifetime warranty, and the included USB 3.0 reader comes with a one-year limited warranty.