128 GB MicroSDXC Class 10 UHS-I Class 3 (U3) V30 160 MB/s A2 Shock resistant, Static proof, Temperature proof, Waterproof, X-ray proof Black, Grey Designed for mobile devices and handheld game consoles, Transcend's Ultra Performance microSDXC 340S memory cards are compliant with the latest A2 speed class and boast excellent random read/write speeds, making them ideal for retrieving small pieces of data from random locations, and quick app launches.A great choice for mobile storageCompliant with the latest A2 specification, Transcend's microSDXC 340S memory cards are the right fit for smartphones, handheld game consoles, action cameras, and drone cameras. Great random read/write performance and large capacities make these ideal for pairing with many devices.Introducing Application Performance ClassThe Application Performance Class was introduced to fulfill the growing need for a better combination of random and sequential performance on mobile devices. Transcend's microSDXC 340S memory