This is a set of four SanDisk SDXC cards. All cards are in perfect working order. Includes: 1 x 512GB, 3 x 128GB. Please refer to the photos for read/write speeds and class ratings. Two cards come with cases, and the other two are sold without cases. Please be aware of this. They will be individually wrapped in cushioning material and shipped via Nekopos. 〈Regarding Purchase〉 Please make your decision based on the product description and images. If you are overly concerned about the condition or do not understand purchasing from a flea market site, please refrain from purchasing. I will answer your questions as best as I can, so please be sure to ask any questions or address any concerns before purchasing. Returns, refunds, and exchanges are not accepted. I am not responsible for any accidents during shipping.