Designed for capturing full HD video and still photos using dash cameras, smartphones, tablets, and other microSDXC compatible devices. It features UHS Speed Class U3 and Speed Class 10. Video Performance – Supports 4k and 1080p full HD video recording and playback with UHS Speed Class U3 and speed class 10. (Performance may vary depending on host device or file attributes.) Storage Capacity – Provides plenty of space for your photos, videos, and more. Wide Compatibility – Suitable for wide-ranging use. Compatible with all Rexing cameras and most devices that support microSDXC cards. Favorable for use with mobile devices, tablets, gaming consoles, drones, and more. Fast Data Transfer – Boost your transfer time with a read speed of up to 100MB/s. Keep up with incoming data with a fast write speed of 90MB/s (U3). Only the U3 class is capable of writing at the speed required for 4K video. Durable – The card is able to withstand extreme hot, and cold temperatures (32°F – 158°F), magnetic p