Memzi Pro High Speed Micro memory cards are ideal for use with all Smartphones, Tablet PC's, Digital Cameras, HD Camcorders and all other Digital Devices that can use Micro SDXC Memory Cards. With a Class 10 UHS-I / UHS-1 class 3 specification and up to 95MB/s* read and 60MB/s* write speeds they are designed to be used where fast memory cards are crucial, capturing High Resolution Images in 4K, 2K, 3D and Full HD video whilst ensuring smooth video playback without any lag or dropped frames. Ideal if you require a High Performance memory card for your Smartphone