The LSDMI64GBBAS300 by Lexar Retail is a 64GB microSDXC (TF) card that boasts a high-speed performance of 300x, equivalent to a minimum guaranteed read speed of 45MB/s, along with a Class 10 rating. This card is designed to accommodate extensive storage needs, offering ample space for high-quality photos, 1080p full-HD, 3D, and 4K video. It is perfect for use with sports camcorders, tablets, and smartphones, guaranteeing smooth video capture and playback without any lags. Lexar's LSDMI64GBBAS300 combines durability with performance, ensuring that your data is safe even in extreme conditions, embodying the perfect balance between reliability and speed for multimedia enthusiasts.