Size:256GB Â |Â Style:Single Unit Patriot's LX Series U3/UHS-I compatible 256GB microSD flash memory card offer blazingly fast performance for the ultimate storage upgrade for 4K capable action cameras, drones, prosumer cameras, and laptops. This memory cards is also Class 10 certified and meet the latest SD Association specifications by providing a minimum sustained write speed of 10MB/s. Remove the bottleneck of slow memory and capture every image or video without missing a moment. The Patriot LX Series 256GB microSD card is fast enough to record video in ultra-high definition 4K resolution. Backed by Patriot Memory's award winning customer service and a 2-year warranty, Patriot's LX Series microSD cards are the best choice for those looking to capture their world in stunning 4K UHD resolution.