The Digi Chip 128GB Micro-SD Class 10 memory card is a high speed memory card made using the highest quality Samsung memory chips. This 128GB memory card is fully compatible with Nokia C20 Plus, C01 Plus, Nokia C30, T20, G50, G300, X100, XR20 smartphones. They are also UHS-1 spec which stands for Ultra High Speed meaning they are some of the fastest mobile memory cards on the market. Digi-Chip Micro SD memory cards come with a lifetime warranty.