Gigastone 256GB Micro Card, Switch / GoPro Compatible Memory Card, -

[Memory Bank] Capture, cherish and well-store all the best moments [Ultra ] Read/Write up to 100/60 /s. 4K Ultra video displaying/recording [Compatibility] Storage for Laptop, Tablet, , Smartphones, Camera, e-Reader. Files, Videos, Music [Environment] Waterproof, shockproof, temperature-proof and -Ray proof [Support] Gigastone 5-year limited warranty