This is a 256GB memory card from CINEDISK. It is a certified memory card for Blackmagic Design's BMPCC 4K, 6K, Ursa Mini Pro, and other cameras, so you don't have to worry about recording stopping, and you can use it with confidence. It also supports various other cinema cameras and can record with high performance. The case is damaged, but the card itself is not. I have used it without any problems on a BMPCC 6K. I have another one, so if you purchase them together, I will offer a discount.