[4K UHD] Read/Write up to 100/60 MB/s. V30 video speed grade, Ultra HD (UHD) 4K video recording, UHD 4K gaming [App] A2 grade provides faster App loading performance for Smartphones & Tablets [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 Android Samsung Canon Nikon. [Environment] Waterproof, shockproof, Temperature-proof and X-ray proof [Support] Gigastone 5-year limited warranty including free data recovery. Free data recovery starting date of each series as following: 4K Camera Pro - June 1st, 2021 / 4K Game Pro - June 1st, 2021 / 4K Game turbo - June 1st, '2020'