***** **********Best Quality Guranteed. *****[Speed] Read/Write up to 95/30 MB/s, V30 speed grade, Ultra HD (UHD) 4K video recording, UHD 4K gaming. *****[App] A1 grade provides faster App loading performance for Smartphone & Tablet. *****[Storage] Expand smartphone internal storage space. Run App on Micro SD card. *****[Compatibility] Storage expansion for Laptop, Tablet, PC, Smartphones, Camera, DSLR, Dash Cam, Camcorder, Surveillance, e-Reader, Drone, Gaming. Files, Videos, Music. Compatible with Nintendo Switch GoPro Andoroid Samsung Canon Nikon*****[Support] 5-year limited warranty