Just wanted to share that I have this SD card filled to the brim on a 5.5.1 US EVERY single popular backup works. Some like Star Fox and wonderful 101 need the files rebuilt for better loading times but even so called problem games like TWPHD work super fast. Even Bay 2 runs without audio hitches. Formatted with 64kb clusters. Here it is! http://www.amazon.com/PNY-Elite-Per...8&qid=1463071569&sr=8-1&keywords=pny+256gb+sd Others care to report what SD cards have been working great for them?