Features: Superfast write speed and trusted performance let you capture seamless 4K videos on your compatible phone or drone. While expanded storage gives you freedom to play more high-performance, intensive games on your tablet or gaming device. Stunningly fast U3, Class10 rated read/write speeds up to 160/120MB/s, lets you shoot more photos faster and transfer with ease. 4K videos look sharp with UHS-I, V30 rated speed and A2 rating provides more storage for apps and games. Huge capacities of 128GB, 256GB and 512GB give you plenty of storage space, you can store many long takes and high-resolution photos as you want, or load and store a variety of applications and multimedia files. The PRO Plus takes on life's adventures with water, temperature, X-ray, magnet, drop and wearout protection. Widely compatible with smartphone, tablet, laptop, digital camera, dash cam, motion camera, monitoring device, etc. Specification: Brand: SAMSUNG Model: PRO Plus Capacity: 128GB/256GB/512GB(optional) Read speed: Up to 16MB/s Write speed: Up to 120MB/s Speed level: Class10, U3, V30, A2 Interface: UHS-I Operating voltage: 2.7~3.6V Item size: 1.5 * 1.1 * 0.1cm /0.59 * 0.43 * 0.04in Packing list: 1 * TF card 1 * SD card adapter