***** **********Best Quality Guranteed. *****UHS-I U1 / CLASS 10 standard, support 4K UHD video recording and playback. *****128GB U1 / C10 micro SD delivers 85MB/s read speed and 50MB/s write speed, ideal for digital cameras, camcorders, DSLRs, action cameras and android mobile phones support 4K UHD. *****microSDXC UHS-I (U1) is water-proof (IPX67), magnet-proof (MRI), X-ray (Airport), and works -2585. *****128GB memory card can save and share 6 hours 4K UHD video, 37, 600 photos, 19, 400 music or 10 hours Full-HD video. *****Lifetime Manufacturer Warranty, replacement provided free anytime.