This is an SD card made by ProGrade. Purchased officially on Amazon. Used about twice. I am selling it because I switched from SD cards when I bought a new camera. I am also selling another one of the same card. 【High Data Transfer Speed】 ProGrade SD cards boast a maximum data transfer speed of 250MB/s, making them ideal for shooting high-resolution photos and 4K videos. 【Large Capacity Storage】 With a large capacity of 256GB, you can store a lot of data, which is convenient for long shoots and data backups. 【Reliability and Durability】 It supports the V60 standard and offers high reliability that can withstand professional use. - Brand: ProGrade - Capacity: 256GB - Speed: 250MB/s - Type: SDXC UHS-II - V60: Supported Feel free to comment.