ADATA 128GB Premier ONE microSDXC UHS-II Memory Card with SD Adaptor – 275MB/s – Read/Write speed: up to 275MB/155MB per sec – Standard: SD 4.0 – Speed class: UHS-II U3 Class 10 V90- Includes SD Adapter – AUSDX128GUII3CL10-CA1 – Limited Product Lifetime Warranty Manufacturer Warranty: Limited Product Lifetime Warranty Manufacturer Contact Info: http://www.adata.com/index_en.html, UHS-II performance boost V90 video speed – supports Ultra HD 8K, 4K and 3D recording Superior compatibility across multiple devices Extra expansion for your devices Premier ONE microSDXC UHS-II memory cards meet the latest UHS-II standards, providing ultra-fast read speeds up to 275MB per second, which is almost 3 times faster compared to UHS-I. Moreover, Premier ONE microSDXC UHS-II memory cards also feature highest-level V90 video speed, supporting uninterrupted recording of Ultra HD 8K, 4K, and 3D/VR video by smartphones, tablets, motion cameras, and drones. Available in 64GB to 256GB and backed by solid multi-point protection, Premier ONE microSDXC UHS-II Class 10 (U3) memory cards allow mobile device and outdoor activity enthusiasts to record and share wonderful memories with ease.