Ideal for an action camera, drone, dash cam, DSLR, home monitor system, Android smartphone, tablet, computer, and laptop to quickly download or record more media files. KEXIN TF memory card is compatible with all MicroSD and wide applications of full-size SD card if with a micro SD adapter. Premium electronic components plus leading manufacturers ensure KEXIN microSD memory card unparalleled performance and incredible reliability. Water and dustproof as well as magnet and shockproof, withstanding low and high temperatures, bumps, bashes, and x-ray, recording your journey without worries about durability. With an ultra-large capacity of up to 256GB, you can store even more hours of full HD videos on the microSDXC card without worrying about running out of room for the videos, photos, music, movies, apps, and other files you want to save and share. With A1 rated App performance ( Random read: 1500 IOPS, Random write: 500 IOPS), the KEXIN TF card is optimized for app load, delivering faster app launch and performance that provides a flawless and smooth smartphone experience. Boosting up to 90MB/s transfer read speed with a Class 10/U3 speed rating, the KEXIN Micro SD card utilizes UHS-I technology to support fast 4K ultra HD video recording and continuous shooting. (Transmission speed may vary depending on different host devices, file attributes, or other factors. A UHS-I compatible device could make the best of the UHS-I speed.).